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Journal articles on the topic 'Franceville, Bassin de (Gabon)'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Mouélé, Idalina Moubiya, Patrick Dudoignon, Abderrazak El Albani, Alain Meunier, Philippe Boulvais, François Gauthier-Lafaye, Jean-Louis Paquette, Hervé Martin, and Michel Cuney. "2.9–1.9Ga paleoalterations of Archean granitic basement of the Franceville basin (Gabon)." Journal of African Earth Sciences 97 (September 2014): 244–60. http://dx.doi.org/10.1016/j.jafrearsci.2014.04.027.

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Aubineau, Jérémie, Olabode M. Bankole, Fabien Baron, Brian Grégoire, and Abderrazak El Albani. "Authigenic kaolinite and sudoite in sandstones from the Paleoproterozoic Franceville sub-basin (Gabon)." Comptes Rendus. Géoscience 353, no. 1 (July 5, 2021): 209–26. http://dx.doi.org/10.5802/crgeos.62.

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Lecomte, Andreï, Raymond Michels, Michel Cathelineau, Christophe Morlot, Marc Brouand, and Nicolas Flotté. "Uranium deposits of Franceville basin (Gabon): Role of organic matter and oil cracking on uranium mineralization." Ore Geology Reviews 123 (August 2020): 103579. http://dx.doi.org/10.1016/j.oregeorev.2020.103579.

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Mathieu, R., M. Cuney, and M. Cathelineau. "Geochemistry of palaeofluids circulation in the Franceville basin and around Oklo natural nuclear reaction zones (Gabon)." Journal of Geochemical Exploration 69-70 (June 2000): 245–49. http://dx.doi.org/10.1016/s0375-6742(00)00054-6.

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Bankole, Olabode M., Abderrazak El Albani, Alain Meunier, and François Gauthier-Lafaye. "Textural and paleo-fluid flow control on diagenesis in the Paleoproterozoic Franceville Basin, South Eastern, Gabon." Precambrian Research 268 (October 2015): 115–34. http://dx.doi.org/10.1016/j.precamres.2015.07.008.

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Ndongo, Alexis, Michel Guiraud, Emmanuelle Vennin, Michel Mbina, Jean-François Buoncristiani, Christophe Thomazo, and Nicolas Flotté. "Control of fluid-pressure on early deformation structures in the Paleoproterozoic extensional Franceville Basin (SE Gabon)." Precambrian Research 277 (May 2016): 1–25. http://dx.doi.org/10.1016/j.precamres.2016.02.003.

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Gauthier-Lafaye, F., R. Bros, and P. Stille. "Pbpe systematics on diagenetic clays: an example from proterozoic black shales of the Franceville basin (Gabon)." Chemical Geology 133, no. 1-4 (November 1996): 243–50. http://dx.doi.org/10.1016/s0009-2541(96)00032-0.

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Bankole, O. M., A. El Albani, A. Meunier, O. J. Rouxel, F. Gauthier-Lafaye, and A. Bekker. "Origin of red beds in the Paleoproterozoic Franceville Basin, Gabon, and implications for sandstone-hosted uranium mineralization." American Journal of Science 316, no. 9 (November 1, 2016): 839–72. http://dx.doi.org/10.2475/09.2016.02.

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Dubois, Manon, Michel Lopez, Beate Orberger, Aurélien Gay, Mathieu Moussavou, Florent Pambo, and Sophie Rodrigues. "The 2.1 Ga-old injectite network of the Franceville Basin, Gabon: Architecture, origin and implications on manganese mineralization." Precambrian Research 302 (November 2017): 255–78. http://dx.doi.org/10.1016/j.precamres.2017.09.022.

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Cuney, Michel, and Régis Mathieu. "Extreme light rare earth element mobilization by diagenetic fluids in the geological environment of the Oklo natural reactor zones, Franceville basin, Gabon." Geology 28, no. 8 (August 2000): 743–46. http://dx.doi.org/10.1130/0091-7613(2000)028<0743:elreem>2.3.co;2.

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Cuney, Michel, and Régis Mathieu. "Extreme light rare earth element mobilization by diagenetic fluids in the geological environment of the Oklo natural reactor zones, Franceville basin, Gabon." Geology 28, no. 8 (2000): 743. http://dx.doi.org/10.1130/0091-7613(2000)28<743:elreem>2.0.co;2.

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Gauthier-Lafaye, F., P. Holliger, and P. L. Blanc. "Natural fission reactors in the Franceville basin, Gabon: A review of the conditions and results of a “critical event” in a geologic system." Geochimica et Cosmochimica Acta 60, no. 23 (December 1996): 4831–52. http://dx.doi.org/10.1016/s0016-7037(96)00245-1.

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13

Guillemoteau, Julien, Pascal Sailhac, and Mickaël Béhaegel. "Regularization strategy for the layered inversion of airborne transient electromagnetic data: application to in-loop data acquired over the basin of Franceville (Gabon)." Geophysical Prospecting 59, no. 6 (August 1, 2011): 1132–43. http://dx.doi.org/10.1111/j.1365-2478.2011.00990.x.

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Mavotchy, Nathaelle Onanga, Abderrazak El Albani, Alain Trentesaux, Claude Fontaine, Anne-Catherine Pierson-Wickmann, Philippe Boulvais, Armelle Riboulleau, Lauriss Ngombi Pemba, Florent Pambo, and François Gauthier-Lafaye. "The role of the early diagenetic dolomitic concretions in the preservation of the 2.1-Ga paleoenvironmental signal: The Paleoproterozoic of the Franceville Basin, Gabon." Comptes Rendus Geoscience 348, no. 8 (November 2016): 609–18. http://dx.doi.org/10.1016/j.crte.2016.08.002.

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15

Mathieu, Régis, Lena Zetterström, Michel Cuney, François Gauthier-Lafaye, and Hiroshi Hidaka. "Alteration of monazite and zircon and lead migration as geochemical tracers of fluid paleocirculations around the Oklo–Okélobondo and Bangombé natural nuclear reaction zones (Franceville basin, Gabon)." Chemical Geology 171, no. 3-4 (January 2001): 147–71. http://dx.doi.org/10.1016/s0009-2541(00)00245-x.

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Peeters, M., E. H. Frost, M. Collet, S. Ossari, F. Yvert, and B. Ivanoff. "Changing antibiotic susceptibility of Neisseria gonorrhoeae in Franceville, Gabon." Antimicrobial Agents and Chemotherapy 31, no. 8 (August 1, 1987): 1288–90. http://dx.doi.org/10.1128/aac.31.8.1288.

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17

Mossman, David J. "Hydrocarbon Habitat of the Paleoproterozoic Franceville Series, Republic of Gabon." Energy Sources 23, no. 1 (January 2001): 45–53. http://dx.doi.org/10.1080/00908310151092137.

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18

Bertrand-Sarfati, J., and B. Potin. "Microfossiliferous cherty stromatolites in the 2000 Ma Franceville Group, Gabon." Precambrian Research 65, no. 1-4 (January 1994): 341–56. http://dx.doi.org/10.1016/0301-9268(94)90112-0.

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19

Mangombi, J. B., C. Brouat, A. Loiseau, O. Banga, E. M. Leroy, M. Bourgarel, and J. M. Duplantier. "Urban population genetics of the invasive black rats in Franceville, Gabon." Journal of Zoology 299, no. 3 (March 30, 2016): 183–90. http://dx.doi.org/10.1111/jzo.12334.

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Amard, B., and J. Bertrand-Sarfati. "Microfossils in 2000 Ma old cherty stromatolites of the Franceville Group, Gabon." Precambrian Research 81, no. 3-4 (February 1997): 197–221. http://dx.doi.org/10.1016/s0301-9268(96)00035-6.

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Mpiga Mickoto, B., J. P. Akue, U. Bisvigou, S. Mayi Tsonga, and D. Nkoghe. "Étude sérologique de la toxoplasmose chez les femmes enceintes de Franceville, Gabon." Bulletin de la Société de pathologie exotique 103, no. 1 (January 8, 2010): 41–43. http://dx.doi.org/10.1007/s13149-009-0031-6.

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22

Toure, F. S., O. Ouwe-Missi-Oukem-Boyer, J. Mezui-Me-Ndong, G. R. Ndong-Atome, U. Bisvigou, D. Mazier, and S. Bisser. "Cytoadherence and Genotype of Plasmodium falciparum Strains from Symptomatic Children in Franceville, Southeastern Gabon." Clinical Medicine & Research 5, no. 2 (June 1, 2007): 106–13. http://dx.doi.org/10.3121/cmr.2007.696.

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23

MOSSMAN, D., F. GAUTHIERLAFAYE, and S. JACKSON. "Black shales, organic matter, ore genesis and hydrocarbon generation in the Paleoproterozoic Franceville Series, Gabon." Precambrian Research 137, no. 3-4 (June 30, 2005): 253–72. http://dx.doi.org/10.1016/j.precamres.2005.03.005.

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Férence Matumuini, N. E., V. Arseine Mboko, T. Gilbert Zougou, Fernand Tendonkeng, I. Abdourhamane Toure, Jules Lemoufouet, Emile Miegoue, Mustapha Malem, Benoît Boukila, and Etienne Pamo. "Caractéristiques physiques et ingestion des blocs multinutritionnels (BMN) à base des feuilles d’Albizia lebbeck associés à la paille de Hyparrhenia diplandra chez la brebis Djallonké au sud-est du Gabon." International Journal of Biological and Chemical Sciences 14, no. 1 (April 3, 2020): 143–53. http://dx.doi.org/10.4314/ijbcs.v14i1.12.

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En saison sèche, les compléments alimentaires offerts aux petits ruminants contiennent généralement du son de blé ou du maïs, qui ne sont pas toujours disponibles. Or, les feuilles d’Albizia lebbeck, légumineuse couramment rencontrée dans la région de Franceville, pourrait constituer une alternative à l’utilisation des céréales dans des rations pour ruminants. C’est ainsi que, les caractéristiques physiques et l’ingestion des blocs multinutritionnels (BMN) à base des feuilles d’Albizia lebbeck associées à la paille d’Hyparrhenia diplandra chez la brebis Djallonké, ont été étudiés à Franceville au Gabon en 2017. Trois formules de blocs multinutritionnels à savoir BMN0 (bloc à base de son de blé), BMN50 (son de blé substitué à 50% par les feuilles d’Albizia lebbeck) et BMN100 (son de blé substitué à 100% par les feuilles d’Albizia lebbeck), ont été utilisées. Les caractéristiques physiques des blocs (cohésion, dureté et couleur) ont été évaluées après séchage pendant 21 jours. Un dispositif en carré latin (3x3) a permis d’évaluer l’appétibilité et l’ingestion des blocs multinutritionnels associés à la paille d’Hyparrhenia diplandra chez les brebis Djallonké en saison sèche. Les résultats ont montré que la cohésion s’est dégradée avec le niveau croissant d’inclusion des feuilles d’Albizia lebbeck ; tandis que la dureté était moyenne pour le BMN50 et le BMN100. Les ingestions des BMN étaient de 133,72±27,35 ; 200,90±61,46 et 235,96±106,48 gMS/j/animal, correspondant à des niveaux d’appétibilité de 24,8±2,70 34,17±4,45 et 46,89±8,16%, respectivement pour les blocs BMN0, BMN50 et BMN100. Cette étude a révélé aussi que, la consommation des blocs avec inclusion des feuilles d’Albizia lebbeck a augmenté significativement l’ingestion de la paille d’Hyparrhenia diplandra. Aussi, cette légumineuse pourrait constituer une alternative à l’utilisation du son de blé dans les blocs à nutriments multiples en saison sèche. © 2020 International Formulae Group. All rights reserved. Mots clés: Alimentation, appétibilité, Franceville, légumineuses, petits ruminants English Title: Physical characteristics and intake of multinutrient blocks (BMN) based on Albizia lebbeck leaves associated with Hyparrhenia diplandra’s straw in Djallonké ewes in southeastern of Gabon English Abstract In the dry season, feed supplements for small ruminants usually contain wheat bran or corn, which are not always available. However, the leaves of Albizia lebbeck, legume commonly found in the region of Franceville, could be an alternative to the use of cereals in ruminant rations. Thus, the physical characteristics and intake of Albizia lebbeck leaves based multinutrient blocks (BMN) as supplement to Hyparrhenia diplandra’s straw in Djallonké ewes, were studied at Franceville in 2017. Three types of multinutrient blocks namely BMN0 (block of wheat bran without Albizia lebbeck leaves), BMN50 (wheat bran substituted 50% by Albizia lebbeck leaves) and BMN100 (wheat bran substituted 100% by Albizia lebbeck leaves), were used for this study. The physical characteristics (cohesion, hardness and color) of blocks were evaluated after drying in the shade during 21 days in a well-ventilated area. A Latin square arrangement (3x3) was used to assess the palatability and intake of multinutrient blocks associated with Hyparrhenia diplandra straw for Djallonké ewes at dry season. The results showed that the blocks cohesions of blocks degraded with the increasing level of inclusion of Albizia lebbeck leaves; while hardness was medium for BMN50 and BMN100. Intake of BMN was 133.72 ± 27.35; 200.90 ± 61.46 and 235.96 ± 106.48 gDM/d/animal, corresponding to a palatability of 24.8±2.70, 34.17±4.45 and 46.89±8.16%, respectively for BMN0, BMN50 and BMN100. This study also revealed that consumption of blocks with inclusion of Albizia lebbeck leaves significantly increased Hyparrhenia diplandra’s straw intake. Also, this legume could be an alternative to using wheat bran in multinutrient blocks at dry season. © 2020 International Formulae Group. All rights reserved. Keywords: Feeding, Franceville, legumes, palatability, small ruminants

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Mangombi, J. B., N. N'Dilimabaka, H. Medkour, O. L. Banga, M. L. Tall, M. Ben Khedher, J. Terras, et al. "Bartonella gabonensis sp. nov., a new bartonella species from savannah rodent Lophuromys sp. in Franceville, Gabon." New Microbes and New Infections 38 (November 2020): 100796. http://dx.doi.org/10.1016/j.nmni.2020.100796.

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26

Elliott, Paul, Lesley L. Walker, Mark P. Little, John R. Blair-West, Robert E. Shade, D. Rick Lee, Pierre Rouquet, et al. "Change in Salt Intake Affects Blood Pressure of Chimpanzees." Circulation 116, no. 14 (October 2, 2007): 1563–68. http://dx.doi.org/10.1161/circulationaha.106.675579.

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Background— Addition of up to 15.0 g/d salt to the diet of chimpanzees caused large rises in blood pressure, which reversed when the added salt was removed. Effects of more modest alterations to sodium intakes in chimpanzees, akin to current efforts to lower sodium intakes in the human population, are unknown. Methods and Results— Sodium intakes were altered among 17 chimpanzees in Franceville, Gabon, and 110 chimpanzees in Bastrop, Tex. In Gabon, chimpanzees had a biscuit diet of constant nutrient composition except that the sodium content was changed episodically over 3 years from 75 to 35 to 120 mmol/d. In Bastrop, animals were divided into 2 groups; 1 group continued on the standard diet of 250 mmol/d sodium for 2 years, and sodium intake was halved for the other group. Lower sodium intake was associated with lower systolic, diastolic, and mean arterial blood pressures in Gabon (2-tailed P <0.001, unadjusted and adjusted for age, sex, and baseline weight) and Bastrop ( P <0.01, unadjusted; P =0.08 to 0.10, adjusted), with no threshold down to 35 mmol/d sodium. For systolic pressure, estimates were −12.7 mm Hg (95% confidence interval, −16.9 to −8.5, adjusted) per 100 mmol/d lower sodium in Gabon and −10.9 mm Hg (95% confidence interval, −18.9 to −2.9, unadjusted) and −5.7 mm Hg (95% confidence interval, −12.2 to 0.7, adjusted) for sodium intake lower by 122 mmol/d in Bastrop. Baseline systolic pressures higher by 10 mm Hg were associated with larger falls in systolic pressure by 4.3/2.9 mm Hg in Gabon/Bastrop per 100 mmol/d lower sodium. Conclusions— These findings from an essentially single-variable experiment in the species closest to Homo sapiens with high intakes of calcium and potassium support intensified public health efforts to lower sodium intake in the human population.

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Mangombi, Joa Braïthe, Nadine N’dilimabaka, Jean-Bernard Lekana-Douki, Octavie Banga, Sydney Maghendji-Nzondo, Mathieu Bourgarel, Eric Leroy, Florence Fenollar, and Oleg Mediannikov. "First investigation of pathogenic bacteria, protozoa and viruses in rodents and shrews in context of forest-savannah-urban areas interface in the city of Franceville (Gabon)." PLOS ONE 16, no. 3 (March 8, 2021): e0248244. http://dx.doi.org/10.1371/journal.pone.0248244.

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Rodents are reservoirs of numerous zoonotic diseases caused by bacteria, protozoans, or viruses. In Gabon, the circulation and maintenance of rodent-borne zoonotic infectious agents are poorly studied and are often limited to one type of pathogen. Among the three existing studies on this topic, two are focused on a zoonotic virus, and the third is focused on rodent Plasmodium. In this study, we searched for a wide range of bacteria, protozoa and viruses in different organs of rodents from the town of Franceville in Gabon. Samples from one hundred and ninety-eight (198) small mammals captured, including two invasive rodent species, five native rodent species and 19 shrews belonging to the Soricidae family, were screened. The investigated pathogens were bacteria from the Rickettsiaceae and Anaplasmataceae families, Mycoplasma spp., Bartonella spp., Borrelia spp., Orientia spp., Occidentia spp., Leptospira spp., Streptobacillus moniliformis, Coxiella burnetii, and Yersinia pestis; parasites from class Kinetoplastida spp. (Leishmania spp., Trypanosoma spp.), Piroplasmidae spp., and Toxoplasma gondii; and viruses from Paramyxoviridae, Hantaviridae, Flaviviridae and Mammarenavirus spp. We identified the following pathogenic bacteria: Anaplasma spp. (8.1%; 16/198), Bartonella spp. (6.6%; 13/198), Coxiella spp. (5.1%; 10/198) and Leptospira spp. (3.5%; 7/198); and protozoans: Piroplasma sp. (1%; 2/198), Toxoplasma gondii (0.5%; 1/198), and Trypanosoma sp. (7%; 14/198). None of the targeted viral genes were detected. These pathogens were found in Gabonese rodents, mainly Lophuromys sp., Lemniscomys striatus and Praomys sp. We also identified new genotypes: Candidatus Bartonella gabonensis and Uncultured Anaplasma spp. This study shows that rodents in Gabon harbor some human pathogenic bacteria and protozoans. It is necessary to determine whether the identified microorganisms are capable of undergoing zoonotic transmission from rodents to humans and if they may be responsible for human cases of febrile disease of unknown etiology in Gabon.

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Ngoubangoye, Barthelemy, Gael Darren Maganga, Larson Boundenga, Thierry Audrey Tsoumbou, Virginie Rougeron, Illich Manfred Mombo, Nancy Diamella Moukodoum, et al. "Absence of paramyxovirus RNA in non-human primate sanctuaries and a primatology center in Gabon." Journal of Epidemiological Research 5, no. 2 (June 12, 2019): 6. http://dx.doi.org/10.5430/jer.v5n2p6.

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The viruses of the Paramyxoviridae family are known to infect a wide range of animals, including primates, birds, rodents,carnivores, bats, ungulates, snakes, cetaceans and humans. This study aims to investigate the circulation of paramyxoviruses in five potential host species groups (humans, non-human primates, rodents, shrews, and bats) living in the same environments in three conservation programs dedicated to non-human primates, namely the Lékédi park, the primatology center of the International Center for Medical Research of Franceville and the Gorilla Protection Program, located in Gabon. We tested 35 workers, 343 NHPs (8 species), 141 bats (4 species), 420 rodents (5 species) and 10 shrews, sampled between 2013 and 2014. Faecal and organ samples were analyzed using three heminested reverse transcription-PCR (hnRT-PCR). All the 1884 samples tested were negative for PV detection. Further studies spanning a greater period of time are needed to investigate PV circulation patterns in theseconservation programs.

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Bivigou-Mboumba, B., F. Rouet, A. Mouinga-Ondeme, L. Deleplancque, J. Sica, A. Ndjoyi-Mbiguino, R. Njouom, and S. François-Souquière. "Hepatitis B, C, and E infection among HIV-infected patients in Franceville, Gabon: retrospective cross-sectional study." Médecine et Santé Tropicales 27, no. 3 (July 2017): 274–80. http://dx.doi.org/10.1684/mst.2017.0698.

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Bignoumba, M., R. Onanga, B. Bivigou Mboumba, A. Gafou, Y. Mouanga Ndzime, R. W. Lendamba, K. Mbombe Moghoa, and R. F. Kassa Kassa. "Vulvovaginal candidiasis among symptomatic women of childbearing age attended at a Medical Analysis Laboratory in Franceville, Gabon." Journal de Mycologie Médicale 29, no. 4 (December 2019): 317–19. http://dx.doi.org/10.1016/j.mycmed.2019.100895.

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Yvert, F., E. Frost, M. Guibourdenche, J. Y. Riou, and B. Ivanoff. "Auxotypes and serogroups of penicillinase producing and non-producing strains of Neisseria gonorrhoeae isolated in Franceville, Gabon." Sexually Transmitted Infections 61, no. 2 (April 1, 1985): 99–102. http://dx.doi.org/10.1136/sti.61.2.99.

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Préat, Alain, Pascal Bouton, Denis Thiéblemont, Jean-Pierre Prian, Serge Simo Ndounze, and Franck Delpomdor. "Paleoproterozoic high δ13C dolomites from the Lastoursville and Franceville basins (SE Gabon): Stratigraphic and synsedimentary subsidence implications." Precambrian Research 189, no. 1-2 (August 2011): 212–28. http://dx.doi.org/10.1016/j.precamres.2011.05.013.

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Mouanga Ndzime, Yann, Richard Onanga, Roland Fabrice Kassa Kassa, Michelle Bignoumba, Pierre Philippe Mbehang Nguema, Amahani Gafou, Roméo Wenceslas Lendamba, Kelly Mbombe Moghoa, and Cyrille Bisseye. "Epidemiology of Community Origin Escherichia coli and Klebsiella pneumoniae Uropathogenic Strains Resistant to Antibiotics in Franceville, Gabon." Infection and Drug Resistance Volume 14 (February 2021): 585–94. http://dx.doi.org/10.2147/idr.s296054.

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Gonzalez, Jean-Paul, Gérard Lambert, Anaïs Legand, and Patrice Debré. "Toward a transdisciplinary understanding and a global control of emerging infectious diseases." Journal of Infection in Developing Countries 5, no. 12 (December 5, 2011): 903–5. http://dx.doi.org/10.3855/jidc.2425.

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The Franceville International Centre for Medical Research (CIRMF) organized a first international symposium on infectious diseases, environments, and biodiversity. Over 200 international experts gathered in Gabon to forecast and work to prevent the emergence of infectious diseases. This symposium aimed to strengthen the regional and international fight against the emergence of infectious diseases with high-level scientific debates. Toward this goal, it brought together experts in human and animal health, the environment, and ecology, including biologists, climatologists, microbiologists, epidemiologists, public health professionals, and human and social sciences specialists. National, regional and international participants were present to debate on the challenges related to the emergence of infectious diseases and on the responses to be implemented. The symposium was very successful, and plans for a second symposium of this kind to be held in the near future in another high-biodiversity area are already underway.

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Lekana-Douki, Jean-Bernard, Julie Pontarollo, Rafika Zatra, and Fousseyni S. Toure-Ndouo. "Malaria in Gabon: Results of a clinical and laboratory study at the Chinese-Gabonese Friendship Hospital of Franceville." Cahiers Santé 21, no. 4 (October 2011): 193–98. http://dx.doi.org/10.1684/san.2011.0263.

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Ndong Ngomo, Jacques M., Guy J. Ondzagha Megnie, Bridy Moutombi Ditombi, Jeanne V. Koumba Lengongo, Noé P. M’Bondoukwé, Christelle L. Offouga, Denise P. Mawili-Mboumba, et al. "Persistence of High In Vivo Efficacy and Safety of Artesunate–Amodiaquine and Artemether–Lumefantrine as the First- and Second-Line Treatments for Uncomplicated Plasmodium falciparum Malaria 10 Years After Their Implementation in Gabon." Acta Parasitologica 64, no. 4 (September 11, 2019): 898–902. http://dx.doi.org/10.2478/s11686-019-00115-y.

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Abstract Purpose Artesunate–amodiaquine (AS–AQ) and artemether–lumefantrine (AL) have been widely used for the treatment of uncomplicated Plasmodium falciparum malaria since 2005 in Gabon. Since 2011, a rebound of malaria morbidity has been observed in this country, while no survey evaluating ACT efficacy was performed. During the same period, parasite resistance against artemisinin has been reported in Asia. The aim of this study was to assess the efficacy and tolerability of these two drugs in two sentinel sites of Gabon 10 years after their implementation. Methods Children aged from 12 to 144 months with uncomplicated malaria were recruited at the Regional Hospital of Melen, Libreville and in the Urban Health Center of Franceville between March 2014 and September 2015. The therapeutic efficacy was evaluated according to the WHO 2008 protocol of 28-day follow-up and PCR-uncorrected/corrected treatment outcomes were assessed. Results One hundred and eighty-five children (98 ASAQ and 89 AL) were followed up until day 28. The PCR-corrected ACPR was 98.9% for AS–AQ and 96.4% for AL. Late therapeutic failure rate was 3.6% and 1.1% for AL and AS–AQ, respectively (p = 0.2). Adverse events and serious adverse events were rarely observed with both treatments. Conclusion AS–AQ and AL are still efficacious and well-tolerated for the treatment of uncomplicated malaria in Gabonese children.

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Maghendji-Nzondo, Sydney, Hermann Nzoughe, Guy Joseph Lemamy, Lady Charlene Kouna, Irene Pegha-Moukandja, Faustin Lekoulou, Bertrand Mbatchi, Fousseyni Toure-Ndouo, and Jean Bernard Lekana-Douki. "Prevalence of malaria, prevention measures, and main clinical features in febrile children admitted to the Franceville Regional Hospital, Gabon." Parasite 23 (2016): 32. http://dx.doi.org/10.1051/parasite/2016032.

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Mourembou, Gaël, Lady Charlene Kouna, Guy Joseph Lemamy, Angelique Ndjoyi Mbiguino, Matthieu Million, Jean Bernard Lekana-Douki, Fousseyni Toure-Ndouo, et al. "Molecular Detection of Fastidious and Common Bacteria as Well as Plasmodium spp. in Febrile and Afebrile Children in Franceville, Gabon." American Journal of Tropical Medicine and Hygiene 92, no. 5 (May 6, 2015): 926–32. http://dx.doi.org/10.4269/ajtmh.14-0699.

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Ngoubangoye, Barthélémy, Larson Boundenga, Serge-Ely Dibakou, Thierry-Audrey Tsoumbou, Cyr Moussadji Kinga, Franck Prugnolle, David Fouchet, and Dominique Pontier. "Surgical Treatment of Oesophagostomum spp. Nodular Infection in a Chimpanzee at the CIRMF Primatology Center, Gabon." Case Reports in Veterinary Medicine 2021 (March 26, 2021): 1–5. http://dx.doi.org/10.1155/2021/6617416.

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Oesophagostomosis is a zoonotic disease caused by nematodes of the genus Oesophagostomum in the intestinal walls of many species, including ruminants, pigs, humans, and nonhuman primates. Although great apes appear to tolerate the parasite in the wild, they can develop a clinical form that can lead to death in captivity and the natural environment. At the Primatology Centre of the International Centre for Medical Research in Franceville (CIRMF) in Gabon, we recorded 4 deaths of chimpanzees (Pan t. troglodytes) caused by Oesophagostomum spp. between 2015 and 2019. In each case, coprological analysis was positive for strongylid eggs and abdominal ultrasound revealed nodules about 4 cm in diameter on the intestinal and abdominal walls. Albendazole treatments administered by mouth in two doses of 400 mg six months apart resulted in the disappearance of the parasite in coprological samples but the chimpanzees still died. Autopsies carried out on all four chimpanzees revealed a rupture of the cysts and a discharge of pus into the abdomen in each case. We report surgical management involving the removal of Oesophagostomum spp. cysts from a chimpanzee following coprological analysis and abdominal ultrasound examination. Surgical exploration confirmed the fragility of the cystic walls, the rupture of which we avoided. This 5th new case of Oesophagostomum ssp. nodules recovered without complications following the operation and could rejoin his group. We suggest that surgical intervention should be considered in similar cases in captive primates, especially chimpanzees.

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Mbina Mounguengui, Michel, François Baudin, Jacques Lang, and Olivier Jocktane. "Paléoenvironnements et caractérisation des roches mères pétrolières des séries pré-salifères du bassin intérieur du Gabon." Comptes Rendus Geoscience 335, no. 3 (March 2003): 327–34. http://dx.doi.org/10.1016/s1631-0713(03)00051-8.

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Ondo Ovono, P., T. Gatarasi, D. Obame Minko, D. Miyoumbi Koumagoye, and C. Kevers. "Etude de la dynamique des populations d’insectes sur la culture du riz NERICA dans les conditions du Masuku, Sud-Est du Gabon (Franceville)." International Journal of Biological and Chemical Sciences 8, no. 1 (June 5, 2014): 218. http://dx.doi.org/10.4314/ijbcs.v8i1.20.

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SULLIVAN, JOHN P., and CARL D. HOPKINS. "A new Stomatorhinus (Osteoglossomorpha: Mormyridae) from the Ivindo River, Gabon, West Central Africa." Zootaxa 847, no. 1 (February 1, 2005): 1. http://dx.doi.org/10.11646/zootaxa.847.1.1.

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Stomatorhinus ivindoensis n. sp. is described from the basin of the Ivindo River, a tributary of the Ogooué River, in Gabon, West Central Africa. This species is characterized by its very small size which is not known to exceed 56 mm standard length. It is distinguished from S. fuliginosus from the Congo basin, the only described Stomatorhinus for which all members of the type series are within the size range of S. ivindoensis, by a smaller caudal peduncle depth to length ratio, a narrower head, a greater number of lateral line scales with visible tubes and pores and by rounded caudal fin lobes. It is distinguished from the similar S. polli, also from the Congo basin, by a longer snout, a smaller eye and a greater interorbital width relative to head length. It is distinguished from S. walkeri, the only other species described from the Ogooué River basin, by its smaller size, smaller snout to pectoral fin distance (relative to standard length) and by its reduced numbers of pectoral rays, vertebrae, and lateral line scales with visible tubes and pores. Stomatorhinus ivindoensis is endemic to the Ivindo River basin of Gabon and is allopatrically distributed with respect to S. walkeri which, although found elsewhere in the Ogooué River basin, has never been recorded from the Ivindo River. Stomatorhinus ivindoensis may be the smallest species of mormyrid fish yet described.Stomatorhinus ivindoensis n. sp. est décrite de la rivière Ivindo, un affluent du fleuve Ogooué, au Gabon, Afrique Centrale. Cette espèce est caractérisée par sa très petite taille, qui ne dépasse pas 56 mm en longueur standard. Elle se distingue de S. fuliginosus du bassin du Congo, la seule espèce de Stomatorhinus décrite dont l’intervalle de taille des spécimens types est compris dans celui de S. ivindoensis, par un rapport largeur sur longueur du pédoncule caudal plus petit, une tête plus étroite, un nombre d’écailles percées le long de la ligne latérale plus grand et une nageoire caudale aux lobes arrondies. Elle se distingue de S. polli, une autre espèce similaire du bassin du Congo, par un museau plus long, un oeil plus petit, et une distance interorbitale plus grande par rapport à la longueur de la tête. Elle se distingue de S. walkeri, la seule autre espèce de Stomatorhinus décrite du

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Lekana-Douki, Jean Bernard, Sylvatrie Danne Dinzouna Boutamba, Rafika Zatra, Sonya Estelle Zang Edou, Hervé Ekomy, Ulrick Bisvigou, and Fousseyni S. Toure-Ndouo. "Increased prevalence of the Plasmodium falciparum Pfmdr1 86N genotype among field isolates from Franceville, Gabon after replacement of chloroquine by artemether–lumefantrine and artesunate–mefloquine." Infection, Genetics and Evolution 11, no. 2 (March 2011): 512–17. http://dx.doi.org/10.1016/j.meegid.2011.01.003.

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Girard, J. C., J. Noëll, F. Larbre, P. Roumagnac, and P. Rott. "First Report of Acidovorax avenae subsp. avenae Causing Sugarcane Red Stripe in Gabon." Plant Disease 98, no. 5 (May 2014): 684. http://dx.doi.org/10.1094/pdis-09-13-0914-pdn.

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During a disease inspection at the sugarcane estate SUCAF near Franceville, Gabon, in March 2011, 1- to 3-mm wide and several dm long dark red stripes were observed on sugarcane (Saccharum spp.) leaves of many plants of cultivar R570. These plants were 5.5 months old in the first ratoon crop. Additionally, spindle leaves of several stalks were rotted and could be easily pulled out of the top of the stalk. Longitudinal sections of diseased stalks showed reddish-brown discoloration of the upper stem and the rotted spindle had an unpleasant odor. Circular, convex, smooth, yellow-cream pigmented bacterial colonies with 2 to 3 mm diameter were isolated after 3 days at 28°C from young leaf lesions on YPGA (yeast extract 7 g/L, peptone 7 g/L, glucose 7 g/L, agar 15 g/L, pH 6.8 to 7.0). The 16S-23S internal transcribed spacer (ITS) of two representative colonies was PCR amplified, and the nucleotide sequences were shown to be 99% identical to the 16S-23S ITS sequence from the genome of Acidovorax avenae subsp. avenae strain ATCC 19860 (GenBank: CP002521.1). One of these A. avenae subsp. avenae isolates from Gabon was inoculated into greenhouse grown plants of sugarcane cultivar R570. Plants were inoculated by injection into the sheath of spindle leaves above the meristem with the bacterial strain (12 plants) or with a water control (six plants). In this method, the bacteria (108 CFU/ml) were injected using a syringe through the leaf sheath until filling the leaf whorl. Three weeks post-inoculation, one to several cm long red-brown stripes were observed on leaves of 11 of 12 inoculated plants. Seven weeks post-inoculation, all plants exhibited symptoms, from red, brown, or black stripes to leaf necrosis, rotting, and death of the spindle leaves (six plants). All six control plants were symptomless. In a second experiment, 6 of 12 plants showed symptoms 3 weeks post inoculation, and the pathogen was successfully re-isolated from all six symptomatic plants with YPGA medium. The 16S-23S ITS of three single colonies obtained each from different symptomatic plants were PCR amplified and the nucleotide sequences were again found 99% identical to the 16S-23S ITS sequence from the genome of A. avenae subsp. avenae ATCC 19860. To our knowledge, this is the first report of A. avenae subsp. avenae, the causal agent of sugarcane red stripe (also reported as top rot), in Gabon. It is also the first description of the occurrence of the top rot form of the disease in R570, a cultivar that is grown in several locations of Africa, the Mascarene Islands, and the French West Indies. A large-scale survey needs to be undertaken to determine the distribution of red stripe in Gabon, a disease for which several outbreaks have been reported recently worldwide (1,2). References: (1) M. P. Grisham and R. M. Johnson. Phytopathology 101:564, 2011. (2) S. Zia-ul-Hussnain et al. Afr. J. Biotechnol. 10:7191, 2011.

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Mensi, I., J. C. Girard, I. Pieretti, F. Larbre, P. Roumagnac, M. Royer, and P. Rott. "First Report of Sugarcane Leaf Scald in Gabon Caused by a Highly Virulent and Aggressive Strain of Xanthomonas albilineans." Plant Disease 97, no. 7 (July 2013): 988. http://dx.doi.org/10.1094/pdis-01-13-0044-pdn.

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During a disease inspection at the sugarcane estate SUCAF near Franceville, Gabon, in March 2011, 0.5 to 1 cm wide chlorotic stripes covered with many small red streaks were observed on sugarcane (Saccharum spp.) leaves of a single plant of cultivar R581. After removal of the leaves covering the base of the stalks, abnormal development of basal side shoots was also observed. Transversal sections of a diseased stalk showed reddening of the vessels near the nodes. Circular, convex, smooth, shiny, translucent, non-mucoid, honey-yellow pigmented bacterial colonies were isolated from stalk pieces and side shoots on XAS selective agar medium (1). The nucleotide sequence of the 16S-23S internal transcribed spacer (ITS) of a representative colony was shown to be 100% identical to the 16S-23S ITS sequence from the genome of Xanthomonas albilineans strain GPE PC73 (GenBank: FP565176.1). This strain from Gabon was named GAB266. Sugarcane stalks of greenhouse grown cultivar CP68-1026 were inoculated with X. albilineans strains XaFL07-1 from Florida, GPE PC73 from Guadeloupe, and GAB266. Five stalks were inoculated by the modified decapitation method (3) with each strain or with a water control. One month post-inoculation (MPI), white pencil lines and severe necrosis were observed on leaves inoculated with strains XaFL07-1 and GPE PC73, and no disease symptoms appeared on non-inoculated leaves that developed 2 to 3 MPI. These results are in agreement with those generally obtained after inoculation of susceptible sugarcane cultivars with X. albilineans strains from various geographical locations under greenhouse conditions (Rott, unpublished results). In contrast, 1 MPI, only discrete white to red pencil lines were observed along with necrosis on leaves inoculated with strain GAB266, and by 2 to 3 MPI, all five inoculated plants were wilted. The pathogen was successfully reisolated by the stalk blot inoculation technique (3) with XAS medium, from all five inoculated stalks and from 98 of 114 internodes. In a second greenhouse experiment, the same three strains of X. albilineans were inoculated as described above into five sugarcane cultivars differing in resistance to leaf scald in Guadeloupe (2) (CP68-1026, highly susceptible; B69566, susceptible; R570, tolerant; B8008, resistant; Co6415, highly resistant). The same symptoms as those described above were again observed on inoculated leaves of the five sugarcane cultivars 1 MPI. Strains XaFL07-1 and GPE PC73 produced occasionally a single pencil line on non-inoculated leaves 2 to 3 MPI, but only strain GAB266 caused leaf scalding and/or plant death 2 to 3 MPI: cultivar CP68-1026 (5 of 5 plants), B69566 (5 of 5 plants), R570 (4 of 5 plants), B8008 (5 of 5 plants), and only non-inoculated leaves of cultivar Co6415 remained symptomless (5 plants). Strain GAB266 from Gabon appeared, therefore, more virulent and aggressive than the two strains of X. albilineans from Florida and Guadeloupe. To our knowledge, this is the first report of leaf scald of sugarcane in Gabon and the first description of an unusual highly virulent and aggressive strain of X. albilineans. A large-scale survey needs to be undertaken to determine the distribution of leaf scald disease and this new pathotype/race of X. albilineans in Gabon and other geographical locations. References: (1) M. J. Davis et al. Plant Dis. 78:78, 1994. (2) P. Rott et al. Phytopathology 87:1202, 1997 (3) P. Rott et al. Mol. Plant-Microbe Interact. 24:594, 2011.

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Dimitrova, Yana D., Jean Mariaux, and Boyko B. Georgiev. "Pseudangularia gonzalezi n. sp. and Gibsonilepis swifti (Singh, 1952) n. g., n. comb. (Cestoda, Dilepididae) from the House Swift, Apus affinis (J.E. Gray) (Aves, Apodiformes) from Franceville, Republic of Gabon." Systematic Parasitology 86, no. 3 (October 27, 2013): 215–33. http://dx.doi.org/10.1007/s11230-013-9445-4.

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Worah, Josiane Audrey, Christian Mikolo Yobo, Innocent AKPACA, Donald Midoko Iponga, Saturnin Ndotit Maghiengha, and Hervé Charles Ndoume Engone. "Analyse de la Gouvernance et de la Légalité D’attribution des Titres D’exploitation Artisanale du Bois D’œuvre au Gabon : Revue de Littérature." International Journal of Progressive Sciences and Technologies 16, no. 2 (September 13, 2019): 14. http://dx.doi.org/10.52155/ijpsat.v16.2.1014.

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RésuméLe marché domestique du bois d’œuvre, empreint d’informalité et de pratiques illégales dans les pays du Bassin du Congo en général et au Gabon en particulier, est très largement méconnu et peu documenté. C’est aussi le cas de la gouvernance relative à la gestion de ce secteur. Dans le contexte actuel de légalité préconisée dans les activités forestières, le Gabon s’est engagé à améliorer la pratique de la légalité dans ses activités forestières. Cette étude vise à analyser la législation et la réglementation en vigueur relatives à l’attribution des permis d’exploitation artisanale de bois d’œuvre au Gabon. L’approche de collecte des données est basée sur une revue de littérature suivie de l’analyse des Forces, Faiblesses, Opportunités et Menaces (FFOM) de la législation et de la réglementation en matière de gestion du secteur domestique du bois d’œuvre au Gabon. De cette analyse, il ressort que pour satisfaire les besoins des populations locales vis-à-vis des titres ou autorisations d’exploitation de type artisanal, le permis de gré à gré (PGG), la forêt communautaire (FC), l’autorisation spéciale de coupe (ASC) et l’autorisation de coupe de bois pour le sciage de long (ACBSL) ont été créés, et ceci en remplacement des coupes familiales (CF) et du permis spécial (PS). L’introduction des PGG, FC, ASC et ACBSL donnent ainsi naissance à la notion de gestion participative ou cogestion des ressources forestières, de satisfaction des droits d’usages coutumiers et de conduite des projets d’intérêts communautaires au bénéfice des populations locales. Bien que l’administration forestière demeure toujours l’institution clé dans la gestion et l’attribution des titres d’exploitation artisanale de bois d’œuvre, cependant elle tend à transférer ses pouvoirs aux autres organes de gestion. Par ailleurs, les seuls titres reconnus par le code forestier actuel (2001) au Gabon sont le PGG (bien que suspendu d’attribution depuis 2010), l’ASC, les FC et l’ACBSL. Pourtant, les CF et le PS n’ont été définitivement suspendus qu’en 2005 et 2010 respectivement alors que l’ASL continue à être délivrée, et ceci en dépit du fait que ce titre soit issu de la loi forestière n°1/82, déjà abrogée. De plus, une confusion existe dans la pratique conjuguée de l’ACBSL et l’ASL d’une part, et les concepts de PGG et de FC d’autre part. Une clarification de la pratique de ces titres est donc nécessaire, de même qu’une évaluation des impacts de la multiplicité de leurs attributions sur le terrain (secteur). Ainsi, l’atteinte de ces objectifs est indispensable si le Gabon doit officiellement continuer les négociations APV/FLEGT avec l’UE, en vue d’améliorer la gouvernance forestière et la pratique de la légalité dans ses activités forestières, particulièrement pour le marché domestique du bois d’œuvre.AbstractThe domestic lumber market, marked by informality and illegal practices in the Congo Basin countries in general and Gabon in particular, is largely unknown and poorly documented. This is also the case of governance related to the management of this sector. In the current context of legality advocated in forest activities, Gabon is committed to improving the practice of legality in its forestry activities. This study aims to analyze the legislation and regulations in force concerning the allocation of artisanal logging permits in Gabon. The data collection approach is based on a literature review followed by analysis of the Strengths, Weaknesses, Opportunities and Threats (SWOT) of legislation and regulations for the management of the domestic softwood lumber sector. Gabon. From this analysis, it appears that to satisfy the needs of the local populations vis-à-vis the titles or authorizations of exploitation of artisanal type, the license of mutual-agreement (PGG), the forest community (FC), the authorization Special Cutting (ASC) and Wood Cutting Permission for Long Sawing (ACBSL) were created, and this in lieu of Family Cutting (CF) and Special Permit (PS). The introduction of PGGs, FCs, ASCs and ACBSLs thus gives rise to the notion of participatory management or co-management of forest resources, satisfaction of customary use rights and the conduct of projects of community interest for the benefit of local populations.Although the forest administration is still the key institution in the management and allocation of artisanal logging titles, it tends to transfer its powers to other management bodies. In addition, the only titles recognized by the current Forest Code (2001) in Gabon are the PGG (although suspended since 2010), the CSA, the CF and the ACBSL. However, the CF and the PS were permanently suspended only in 2005 and 2010 respectively while the ASL continues to be issued, and this despite the fact that this title is derived from the forestry law n ° 1/82 , already repealed. Moreover, there is confusion in the combined practice of ACBSL and ASL on the one hand, and the concepts of PGG and FC on the other. A clarification of the practice of these titles is therefore necessary, as well as an evaluation of the impacts of the multiplicity of their attributions on the ground (sector). Thus, achieving these objectives is essential if Gabon is to formally continue the VPA / FLEGT negotiations with the EU, with a view to improving forest governance and the practice of legality in its forestry activities, particularly for the domestic market. timber.Key words: Forest governance, legality, title, artisanal timber harvesting

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Lescuyer, Guillaume, and Julienne Nadège Essoungou. "Gestion forestière multi-usages en Afrique centrale : perceptions, mises en oeuvre et évolutions." BOIS & FORETS DES TROPIQUES 315, no. 315 (March 1, 2013): 29. http://dx.doi.org/10.19182/bft2013.315.a20536.

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Quoique la gestion forestière multiusages (Gfmu) soit promue par les codes forestiers d'Afrique centrale, cette approche reste mal comprise et peu mise en oeuvre pour les forêts de production et les forêts communautaires. L'article présente les résultats de 62 entretiens avec des personnes impliquées dans la gestion forestière au Cameroun, au Gabon et en République démocratique du Congo, et fait ressortir trois interprétations de la Gfmu : une exploitation durable du bois intégrant secondairement les usages des autres acteurs ; une utilisation coutumière des ressources par les populations locales ; une gestion planifiée et formelle de la diversité des biens et fonctions fournis par ces écosystèmes. L'analyse détaillée de huit études de cas montre en pratique que l'aménagement durable de la forêt se focalise presque toujours sur l'exploitation du bois ; quoique l'utilisation du gibier et la collecte des produits forestiers non ligneux soient systématiquement mentionnés dans les documents d'aménagement. À l'inverse, les services environnementaux - séquestration du carbone, protection des bassins versants - ou les biens publics y sont quasi absents. L'inscription de différents usages dans les documents de gestion ne suffit toutefois pas pour qu'ils soient toujours mis en oeuvre sur le terrain. Trois pistes sont explorées pour renforcer l'application de la Gfmu dans le bassin du Congo : concevoir la Gfmu à l'échelle du paysage et non à celle du massif forestier ; améliorer le contenu des documents d'aménagement forestier pour y inclure et valoriser l'ensemble des usages de la forêt ; renforcer le contrôle de l'application effective des documents de gestion, grâce à la certification ou à un meilleur contrôle du respect de la légalité.

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Aubréville, André, and Ilona Bossanyi. "Erosion under Forest Cover and Erosion in Deforested Areas in the Humid Tropical Zone." BOIS & FORETS DES TROPIQUES 323, no. 323 (January 7, 2015): 103. http://dx.doi.org/10.19182/bft2015.323.a31259.

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L’érosion par décapage ou par ravinement reste insignifiante sous la forêt dense tro- picale. Une érosion sérieuse peut certes se manifester localement sous couvert forestier, sous la forme de glissement de terrains saturés d’eau. De tels cas peuvent être observés à Madagascar, dans la forêt d’Anamalazoatra ou dans celle de Marojejy. Un cas connu d’érosion généralisée sous forêt dense se situe en Amazonie péruvienne, près de la petite localité de la Merced, sur des pentes très abruptes. Mais ce sont là des exceptions. Dans les temps géologiques, durant les périodes de transformations tectoniques, l’érosion peut aussi avoir été intense sous forêt dense, générant des reliefs tourmentés, parfois des « badlands ». Mais dans tous ces cas, l’érosion ne se produit sous forêt que lorsqu’il y a élé- vation du niveau de base des fleuves par rapport au niveau des océans, comme cela s’est manifesté durant les glacia- tions quaternaires. Là où la forêt manque aujourd’hui, se manifestent en revanche des phénomènes d’érosion parfois spec- taculaires. Ceux-ci peuvent prendre des proportions spectaculaires dans des régions autrefois forestières, récemment et sévèrement éclaircies. Les situations les plus extrêmes sont observées à Ma- dagascar, au Congo, au Gabon, au Brésil et dans la partie tempérée des USA, tout particulièrement dans le bassin cupri- fère du Tennessee. Ces exemples confir- ment pleinement la vertu antiérosive des forêts. Lorsque l’érosion est déclenchée, celle-ci ne peut être arrêtée qu’à grands frais, et dans des zones restreintes. La fo- rêt joue donc un rôle anti-érosif préventif à la fois naturel, peu coûteux, et opérant sur de larges étendues.Résumé adapté par la rédaction de la revue.

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Mba, Thiery Ndong, Cedric Sima Obiang, Hilaire Kenguele Moundounga, Elvis Othogo N’Nang, Bourdettes Meye, Iris Kévin Ivala Zogo Mba, Arnaud Brice Pambo -Pambo, et al. "Epidemiological and Clinical Profile of Patients in the Medical Emergency Department at Amissa Bongo Regional Hospital in Franceville (ABRH), Gabon; Retrospective Cross-sectional Study." Journal of Advances in Medicine and Medical Research, September 4, 2021, 1–14. http://dx.doi.org/10.9734/jammr/2021/v33i1931073.

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Objective: To evaluate the different non-surgical predominant pathologies in the emergency department of the Amissa Bongo regional hospital in Franceville, Haut-Ogooué. Materials and Methods: Using consultation registers and some medical records, we retrospectively studied the epidemiological and clinical profile of patients who consulted for a medical and non-surgical or gynaeco-obstetrical emergency, from 1 January 2018 to 31 December 2018. Results: During this period, 19597 patients consulted for a medical emergency at the Amissa Bongo regional hospital in Franceville in Haut-Ogooué (Gabon). This high score indicated that the majority of patients came from the different districts of the commune of Franceville and other departments of the province. Three periods of high attendance were distinguished: the long dry season (37.3%), the short rainy season (28.4%) and the long rainy season (24%), compared to the short dry season (10.3%). Infectious diseases were recurrent with 63.16%, and with 67% of cases, malaria (severe and simple) was more frequent. Non-infectious emergencies were also noted, such as diseases of the respiratory system (1791 cases = 24.81%), diseases of the digestive system (1028 cases = 14.24%), skin diseases (809 cases = 24.81%), cardiovascular diseases (800 cases = 11.21%), blood diseases (686 cases = 9. 5%), diseases of the urogenital system (588 cases = 8.14%), diseases of the locomotor system (510 cases = 7.06%), ENT diseases (451 cases = 6.24%), diseases of the glands and metabolism (296 cases = 4.10%), diseases of the nervous system and the senses (260 cases = 3.60%) Conclusion: Compared to non-infectious diseases, infectious and parasitic diseases are recurrent at CHRAB. They therefore require special attention from the health authorities of this hospital, and even of Gabon.

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