Academic literature on the topic 'Oocystes'
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Journal articles on the topic "Oocystes"
Gideon, Ajeagah, and Jean E. Karie Mouncharou. "Dynamique de l'abondance des oocystes d'Isospora belli dans un milieu aquatique en zone tropicale (Cameroun)." Hydroécologie Appliquée 20 (January 14, 2015): 85–102. http://dx.doi.org/10.1051/hydro/2014010.
Full textMpoame, M., and J. Tchoumboué. "Elimination périodique des oocystes d’Eimeria chez le poulet pendant la journée en milieu tropical." Revue d’élevage et de médecine vétérinaire des pays tropicaux 49, no. 3 (March 1, 1996): 227–28. http://dx.doi.org/10.19182/remvt.9518.
Full textAjeagah, Gideon A., Ellénita Ngoko Kamguep, Moïse Nola, Samuel Foto Menbohan, and Thomas Njine. "Isolement et mise en évidence des oocystes de Cyclospora cayetanensis dans un hydrosystème polysaprobe en zone équatoriale, Afrique Centrale." Revue des sciences de l’eau 27, no. 2 (June 13, 2014): 115–24. http://dx.doi.org/10.7202/1025562ar.
Full textPichon, G., V. Robert, T. Tchuinkam, B. Mulder, and J. P. Verhave. "Analyse quantitative de la distribution des oocystes dePlasmodium falciparumchezAnopheles gambiae." Parasite 3, no. 2 (June 1996): 161–67. http://dx.doi.org/10.1051/parasite/1996032161.
Full textBrasseur, P., C. Uguen, A. Moreno-Sabater, L. Favennec, and J. J. Ballet. "Effets des oxydants sur le dékystement des oocystes de Cryptosporidium parvum." Journal européen d’hydrologie 28, no. 2 (1997): 133–39. http://dx.doi.org/10.1051/water/19972802133.
Full textBouratbine, A., K. Aoun, R. Barbouche, M. Béjaoui, and R. Ben Ismail. "Fréquent d'isolement des oocystes de Cryptosporidium dans les selles diarrhéiques d'enfants tunisiens." Médecine et Maladies Infectieuses 28, no. 4 (April 1998): 308–10. http://dx.doi.org/10.1016/s0399-077x(98)80056-5.
Full textNACIRI, M. "La cryptosporidiose. Importance de la contamination de l’eau." INRAE Productions Animales 5, no. 5 (February 29, 1992): 319–27. http://dx.doi.org/10.20870/productions-animales.1992.5.5.4246.
Full textOuld Ahmed Salem, C. B., D. F. Mamadou, and J. Hafid. "Étude de la prévalence des oocystes de Toxoplasma gondii chez le chat à Nouakchott." Bulletin de la Société de pathologie exotique 110, no. 5 (October 20, 2017): 315–17. http://dx.doi.org/10.1007/s13149-017-0577-7.
Full textMukiibi-Muka, G., M. O. Otim, G. Musisi, J. Illango, T. Galiwango, and W. Olaho Mukani. "Etude comparative de l’efficacité de l’amprolium et du diclazuril chez des poulets de chair naturellement infectés en Ouganda." Revue d’élevage et de médecine vétérinaire des pays tropicaux 54, no. 1 (January 1, 2001): 33. http://dx.doi.org/10.19182/remvt.9802.
Full textDelaunay, A., A. Baishanbo, L. Favennec, and G. Gargala. "Évaluation de la viabilité et de l’infectivité des oocystes de Cryptosporidium par cytométrie en flux." Annales Pharmaceutiques Françaises 62, no. 5 (September 2004): 310–15. http://dx.doi.org/10.1016/s0003-4509(04)94319-2.
Full textDissertations / Theses on the topic "Oocystes"
Annan, Zeinab. "Structure génétique des populations de Plasmodium falciparum, agent de forme grave du paludisme, chez l'homme et les anophèles vecteurs en Afrique." Montpellier 2, 2007. http://www.theses.fr/2007MON20158.
Full textBonnin, Alain. "Cryptosporidium parvum : étude biologique en culture in vitro : caractérisation et immunolocalisation de déterminants antigéniques à l'aide d'anticorps monoclonaux." Dijon, 1991. http://www.theses.fr/1991DIJOMU02.
Full textDumètre, Aurélien. "Contribution à la détection de Toxoplasma gondii dans l'environnement et dans des réservoirs animaux." Limoges, 2005. http://aurore.unilim.fr/theses/nxfile/default/4ae3d59d-fa2a-4e87-9f28-d2b7c0f3b099/blobholder:0/2005LIMO310C.pdf.
Full textToxoplasmosis is an anthropozoonosis of medical and veterinary importance, due to the protozoan Toxoplasma gondii. Oocysts shed by felids play a key role in parasite transmission as they contaminate meat-producing animals, vegetables and water consumed later by humans. In this work, two approaches were developed to refine the oocyst prevalence in the environment (i) a new method to detect waterborne oocysts, the immunomagnetic separation (IMS), and (ii) a study of the toxoplasmosis prevalence in oocyst-infected animals (meat-producing and wild). For IMS development, two new monoclonal antibodies (mAb 3G4 and 4B6) directed against the oocyst wall were produced and characterised. 3G4 reacts with 58 and 67-69 kDa antigens while 4B6 is specific of >116 kDa antigen of the sporulated oocyst. These two mAb cross-react with autofluorescent coccidia phylogenetically closed to T. Gondii. Experimental IMSs were developed with these mAb, but only the more specific one, 4B6, was integrated for further IMS experiments in field conditions. Fifty surface water samples, recovered in particular epidemiological contexts, were analysed by filtration, IMS-4B6, IFI, bioassay and real-time PCR. We failed to detect Toxoplasma in these samples. In the same time, the analysis of 639 serums of meat-producing and wild animals showed in four oocyst-infected speciesfrom Limousin region, seroprevalence of 20,6% to 59,1% in sheep, 27,5% in bovines, 18,5% in free-ranging chickens and 20,4% in nutria. Some genotype II Toxoplasma isolateswere isolated. This work contributes to precise the toxoplasmosis prevalence in animal reservoirs, and proposes technical and strategic improvements to detect oocysts by IMS. These first results need to be followed by more extensive investigations
Razakandrainibe, Fabien Gaston. "Biologie et fonctionnement des populations naturelles de Plasmodium falciparum à l'Ouest de Kenya : stratégie de reproduction, dispersion et co-structuration génétique avec ses deux principaux vecteurs : Anopheles gambiae sensu lato et Anopheles funestus." Paris 6, 2007. http://www.theses.fr/2007PA066652.
Full textVaccine An important goal in evolutionary biology is to understand how factors such as the boundaries of demes and the mating systems in natural populations shape patterns and levels of genetic diversity within populations. For Plasmodium falciparum, the most severe malaria agent, the biology and population genetic structure are poorly understood despite the large amount of knowledge we have about this parasite. We know very little about the actual mating system in wild populations. Many views are conflicting: The population genetic structure of P. Falciparum has been shown to be predominantly "clonal" (i. E. Highly inbred) in regions with low transmission; in contrast, in high-transmission regions it is thought to be panmictic, although there is little supporting evidence. The contradiction reflects a general confusion about the methodical approaches and techniques used to get the results and so add up to direct sources of biased view to the debate. The question about the mating system is also related to the isolation among mosquito hosts within a geographic location, to the sizes of the host-parasite populations (which determine the levels of genetic drift and thus the efficacy of natural selection) and to their connectivity (which determines the speed at which a favourable mutation may spread to different areas). The degree of differentiation among geographically separated populations of P. Falciparum and the distribution of P. Falciparum among the species of its major mosquito vectors are of primary relevance to understanding the disease's epidemiology and its evolution, i. E. How these organism evolve, co-evolve and may thus respond to future changes in their environments. We investigated patterns of genetic diversity of P. Falciparum associated with its two main African vectors Anopheles gambiae and A. Funestus in Western Kenya. Using neutral microsatellite markers and oocysts, the diploid stage of Plasmodium falciparum, we determine a 'clonal' nature to Plasmodium falciparum, i. E. Show that P. Falciparum has a high level of inbreeding in two African regions (Cameroun and Kenya) despite perennial and intense malarial transmission. The geographic differentiation among microsatellite loci is weak in these regions. We also observed little genetic differentiation among mosquito populations. Finally, our results do not show P. Falciparum genetic variability between the mosquito species. This work is crucial to a current understanding of the P. Falciparum's ecology and evolution. The parameters we report are relevant because they affect levels of genetic diversity, opportunities for local adaptation, and other evolutionary processes and because they have epidemiological consequences, concerning the spread of multi-locus drug and -resistance
Khaldi, Samira. "Apport d'un modèle de rat d'hypersensibilité intestinale induite par Cryptosporidium parvum à la physiopathologie du syndrome de l'intestin irritable post-infectieux ; et transfert des oocystes de Cryptosporidium spp. Dans l'aquifère de la craie." Rouen, 2010. http://www.theses.fr/2010ROUES047.
Full textCryptosporidiosis, caused by Cryptosporidium spp. , is a self-limiting infection in immunocompetent individuals but may be life-threatening in immunocompromised individuals, in the absence of effective treatment. The pathophysiological mechanisms of cryptosporidiosis are not yet fully understood, but it has been shown that cryptosporidiosis can cause long-term sequelae. The first part of this work was aimed to highligt in a suckling rat model that infection with C. Parvum (isolate Nouzilly) leads to a more severe infection compared to rats that were infected with C. Parvum (isolate Iowa). Moreover, after clearance of infection, sub-mucosal infiltration of activated mast cells was observed in the jejunum. This infiltration is concomitant with the occurrence of a jejunal hypersensitivity to distention at day 50 post-infection. The anomalies observed are similar to those found in patients suffering from a post-infectious irritable bowel syndrome. The second part of the thesis was dedicated to the study of the transfer modalities of Cryptosporidium oocysts in a well-defined karst system, from the entry (swallow hole) to the exit of the system (spring and well-bore). It has been shown that the oocysts are transported in karst conduits, undergoing transfer, depostion and resuspention processes, under the influence of hydrodynamic gradient. Moreover, it was observed that the exploitation of the resource for the drinking water supply by sequences of continuous pumping promoted resuspension of sedimented oocysts and contributes to contamination of water resources
Pugh, Hedley James. "Deposition and adhesion of cryptosporidium oocysts on surfaces." Thesis, University College London (University of London), 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300120.
Full textHardy, Scott Andrew. "Effectiveness of static mixers for disinfection of cryptosporidium oocysts." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/20925.
Full textLiyanage, Lalith R. J. "Chlorine dioxide inactivation of Cryptosporidium parvum oocysts in water." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0007/NQ29064.pdf.
Full textLewin, Nicola. "Effects of sequential exposure of Cryptosporidium oocysts to chemical disinfectants." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0010/MQ60147.pdf.
Full textNazir, Mozamel. "Novel methods for the separation of Cryptosporidium parvum oocysts from water." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252194.
Full textBooks on the topic "Oocystes"
Clancy, Jennifer L. Recovery of Cryptosporidium oocysts from high-volume water samples. Denver, CO: Awwa Research Foundation, 2003.
Find full textNorton, William D. Survey of open finished water reservoirs for Giardia cysts and Cryptosporidium oocysts. [Trenton, N.J.]: Division of Science and Research, NJ Dept. of Environmental Protection, 1997.
Find full textRadziminski, Christopher Zygmunt. Inactivation of cryptosporidium parvum oocysts and bacillus subtilis spores by chlorine dioxide in laboratory reagent and natural waters. Ottawa: National Library of Canada, 2000.
Find full textLeChevallier, Mark W. Short-term variability of Giardia cyst and Cryptosporidium oocyst concentrations in a surface water source used for potable water. Trenton, N.J: New Jersey Dept. of Environmental Protection, Division of Science and Research, 1998.
Find full textBiswas, Kaushik. Synergistic Inactivation of Cryptosporidium Oocysts in Natural Waters. American Water Works Association, 2002.
Find full textDubey, J. P. Toxoplasmosis, sarcocystosis, isosporosis, and cyclosporosis. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198570028.003.0054.
Full textWidmer, Giovanni. Molecular Mechanisms of Chemical Inactivation of Cryptosporidium Oocysts and Giardia Cysts. American Water Works Association, 2003.
Find full textNJDEP survey of source water for Giardia cysts and Cryptosporidium oocysts. [Trenton, N.J.]: New Jersey Dept. of Environmental Protection, Division of Science and Research, 1995.
Find full textSequential Disinfection Design Criteria for Inactivation of Cryptosporidium Oocysts in Drinking Water. Amer Water Works Assn, 2001.
Find full textHonorine, Ward, and AWWA Research Foundation, eds. Structural physiology of the cryptosporidium oocyst wall. Denver, CO: AWWA Research Foundation, 2004.
Find full textBook chapters on the topic "Oocystes"
Mehlhorn, Heinz. "Oocyst." In Encyclopedia of Parasitology, 2000–2001. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-43978-4_2214.
Full textMehlhorn, Heinz. "Oocyst." In Encyclopedia of Parasitology, 1–2. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-642-27769-6_2214-2.
Full textRochelle, Paul A., and George D. Di Giovanni. "Cryptosporidium Oocysts in Drinking Water and Recreational Water." In Cryptosporidium: parasite and disease, 489–513. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1562-6_12.
Full textRobertson, Lucy J. "Approaches to Detecting Cryptosporidium Oocysts in Different Food Matrices." In Cryptosporidium as a Foodborne Pathogen, 25–38. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-9378-5_4.
Full textRobertson, Lucy J. "Occurrence of Cryptosporidium oocysts in Different Food Matrices: Results of Surveys." In Cryptosporidium as a Foodborne Pathogen, 39–56. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-9378-5_5.
Full textArrowood, Michael J. "Cryptosporidium Oocyst Purification Using Discontinuous Gradient Centrifugation." In Methods in Molecular Biology, 43–59. New York, NY: Springer New York, 2019. http://dx.doi.org/10.1007/978-1-4939-9748-0_4.
Full textMurphy, Jennifer L., and Michael J. Arrowood. "Cell Culture Infectivity to Assess Chlorine Disinfection of Cryptosporidium Oocysts in Water." In Methods in Molecular Biology, 283–302. New York, NY: Springer New York, 2019. http://dx.doi.org/10.1007/978-1-4939-9748-0_16.
Full textAlba, Alejandra, Laura Baker, Graciela Juez, and Andrés Ramírez. "Optical microscopy and autofluorescence recognition of Toxoplasma gondii and Cryptosporidium parvum oocysts." In VII Latin American Congress on Biomedical Engineering CLAIB 2016, Bucaramanga, Santander, Colombia, October 26th -28th, 2016, 281–84. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4086-3_71.
Full textQuader, Hartmut. "Cellulose Microfibril Synthesis and Orientation in Oocystis Solitaria: Evidence for the Involvement of Calcium." In Molecular and Cellular Aspects of Calcium in Plant Development, 57–64. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2177-4_8.
Full textSokol, Sarah L., Zhee Sheen Wong, Jon P. Boyle, and Jitender P. Dubey. "Generation of Toxoplasma gondii and Hammondia hammondi Oocysts and Purification of Their Sporozoites for Downstream Manipulation." In Methods in Molecular Biology, 81–98. New York, NY: Springer US, 2019. http://dx.doi.org/10.1007/978-1-4939-9857-9_4.
Full textConference papers on the topic "Oocystes"
Guo, Yingxue, Wanyue Zhao, Xiaohong Zhou, Yun Lu, Minghua Chen, Sigang Yang, and Hongwei Chen. "Ultrafast time-encoded flow imaging for Giardia cysts and Cryptosporidium oocysts detection." In Real-time Photonic Measurements, Data Management, and Processing IV, edited by Bahram Jalali, Ming Li, and Mohammad Hossein Asghari. SPIE, 2019. http://dx.doi.org/10.1117/12.2536789.
Full textStewart, Shona, Lindy McClelland, and John Maier. "A fast method for detecting Cryptosporidium parvum oocysts in real world samples." In Biomedical Optics 2005, edited by Tuan Vo-Dinh, Warren S. Grundfest, David A. Benaron, and Gerald E. Cohn. SPIE, 2005. http://dx.doi.org/10.1117/12.589363.
Full textMurugkar, Sangeeta, Silvia Carrasco, Conor Evans, X. Sunney Xie, and Hanan Anis. "Rapid detection of cryptosporidium parvum oocysts using coherent anti-Stokes Raman scattering (CARS) microscopy." In CLEO 2007. IEEE, 2007. http://dx.doi.org/10.1109/cleo.2007.4452969.
Full textBacon, Christina P., J. B. Rose, K. Patten, and Luis H. Garcia-Rubio. "Quantitative classification of cryptosporidium oocysts and giardia cysts in water using UV/vis spectroscopy." In Photonics West '95, edited by Joseph R. Lakowicz. SPIE, 1995. http://dx.doi.org/10.1117/12.208509.
Full textAsnifatima, Andi, Siti Khodijah Parinduri, and Ahsin Aligori. "Environmental and Behavior Factors on the Incidences of Toxoplasmosis among Married Women." In The 7th International Conference on Public Health 2020. Masters Program in Public Health, Universitas Sebelas Maret, 2020. http://dx.doi.org/10.26911/the7thicph.03.25.
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