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Artículos de revistas sobre el tema "Ovine pneumonia"

Autor: Grafiati

Publicado: 7 de junio de 2025

Última modificación: 2 de agosto de 2025

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1

Mekibib, Berhanu, Tadesse Mikir, Amene Fekadu, and Rahmeto Abebe. "Prevalence of Pneumonia in Sheep and Goats Slaughtered at Elfora Bishoftu Export Abattoir, Ethiopia: A Pathological Investigation." Journal of Veterinary Medicine 2019 (July 18, 2019): 1–10. http://dx.doi.org/10.1155/2019/5169040.

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Accurate clinical diagnosis of pneumonia, the leading cause of mortality in small ruminants, is difficult and usually requires postmortem examination of the lungs. An active abattoir survey was conducted between November 2017 and April 2018 to estimate the prevalence and characterize the gross and histopathological lesions of pneumonic lungs in 864 clinically healthy young small ruminants (490 sheep and 374 goats aged 1.5 to 3 years) raised for meat in different parts of the country and slaughtered at Elfora Bishoftu export abattoir, Ethiopia. Out of the total lungs examined grossly, pneumonic

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2

Deng, P., R. C. Cutlip, H. D. Lehmkuhl, and K. A. Brogden. "Ultrastructure and Frequency of Mastitis Caused by Ovine Progressive Pneumonia Virus Infection in Sheep." Veterinary Pathology 23, no. 2 (1986): 184–89. http://dx.doi.org/10.1177/030098588602300212.

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Twenty-five sheep, experimentally ( n = 15) or naturally ( n = 6) infected with ovine progressive pneumonia virus and noninfected controls ( n = 4), were evaluated for histological and ultrastructural lesions of mastitis. Histologically, nine of 15 experimentally infected sheep and all six naturally infected sheep had lympho-plasmacytic mastitis. Severity of the lesion increased with length of time after infection. Periductal lymphatic nodules were seen in five sheep experimentally infected for 2.8 years or longer and in five naturally infected sheep that wore 3.7 years old or older. Ultrastru

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3

Kuroda-Kitagawa, Yuko, Chieko Suzuki-Muramatsu, Tsuyoshi Yamaguchi, Hideto Fukushi, and Katsuya Hirai. "Antigenic analysis of Chlamydia pecorum and mammalian Chlamydia psittaci by use of monoclonal antibodies to the major outer membrane protein and a 56- to 64-kd protein." American Journal of Veterinary Research 54, no. 5 (1993): 709–12. http://dx.doi.org/10.2460/ajvr.1993.54.05.709.

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Summary Monoclonal antibodies were prepared against 40- and 56- to 64-kd antigens of Chlamydia pecorum strain Maeda, which was isolated from a cow with pneumonia. Using the monoclonal antibodies, 5 strains of C pecorum, 25 strains of mammalian and 19 strains of avian C psittaci, 1 strain of C pneumoniae, and 3 strains of C trachomatis were analyzed for immunologic reactivity by use of the indirect immunofluorescent test. Monoclonal antibody analysis revealed immunologic relatedness between C pecorum and mammalian strains of C psittaci, which were completely differentiated from the other avian

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4

Cutlip, R. C., H. D. Lehmkuhl, and R. L. Wood. "Arthritis associated with ovine progressive pneumonia." Journal of the American Veterinary Medical Association 186, no. 8 (1985): 814. https://doi.org/10.2460/javma.1985.186.08.814a.

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5

Cutlip, Randall C., Howard D. Lehmkuhl, Richard L. Wood, and Kim A. Brogden. "Arthritis associated with ovine progressive pneumonia." American Journal of Veterinary Research 46, no. 1 (1985): 65–68. https://doi.org/10.2460/ajvr.1985.46.01.65.

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SUMMARY Chronic nonsuppurative arthritis developed in carpal and tarsal joints of border Leicester sheep that were naturally or experimentally infected with ovine progressive pneumonia (opp) virus. Clinical signs of arthritis began at 1 to 6.2 years of age (1 to 5.7 years after inoculation of opp virus) and slowly progressed in severity until the sheep died or were killed. The joint lesions were characterized by edema, hyperemia, hyperplasia, and necrosis of the synovial membrane; by necrosis and erosion of articular bone; by necrosis and fibrosis of subchondral bone; and by extensive periarti

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6

de la Concha-Bermejillo, Andrés. "Maedi-Visna and Ovine Progressive Pneumonia." Veterinary Clinics of North America: Food Animal Practice 13, no. 1 (1997): 13–34. http://dx.doi.org/10.1016/s0749-0720(15)30362-5.

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7

Rosadio, R. H., J. M. Sharp, M. D. Lairmore, J. E. Dahlberg, and J. C. De Martini. "Lesions and Retroviruses Associated with Naturally Occurring Ovine Pulmonary Carcinoma (Sheep Pulmonary Adenomatosis)." Veterinary Pathology 25, no. 1 (1988): 58–66. http://dx.doi.org/10.1177/030098588802500108.

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Five sheep with ovine pulmonary carcinoma were markedly dyspneic and had sporadic coughing; two had copious watery nasal exudate. In four, lesions consisted of multifocal nodules of neoplastic cuboidal epithelial cells in acinar or papillary patterns. Electron microscopically, cells had microvilli, tight junctions, and cytoplasmic lamellar bodies typical of alveolar type II cells. One sheep had a single lung tumor of nonciliated bronchiolar epithelial cells. Vacuolated alveolar macrophages surrounded adenomatous foci. One sheep had a metastatic lesion in the caudal mediastinal lymph node. All

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8

Lairmore, M. D., S. T. Butera, G. N. Callahan, and J. C. DeMartini. "Spontaneous interferon production by pulmonary leukocytes is associated with lentivirus-induced lymphoid interstitial pneumonia." Journal of Immunology 140, no. 3 (1988): 779–85. http://dx.doi.org/10.4049/jimmunol.140.3.779.

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Abstract Ovine lentiviruses share genome sequence, structural features, and replicative mechanisms with HIV, the etiologic agent of AIDS. A lamb model of lentivirus-induced lymphoid interstitial pneumonia, comparable to lymphoid interstitial pneumonia associated with pediatric AIDS, was used to investigate production of leukocyte-soluble mediators. Lentivirus-infected lambs and adult sheep with severe lymphoid interstitial pneumonia had significantly elevated levels of spontaneous interferon (IFN) production from pulmonary leukocytes compared with ovine lentiviruses-infected animals with mild

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9

Cutlip, Randall C., Howard D. Lehmkuhl, Mary Jo F. Schmerr, and Kim A. Brogden. "Ovine progressive pneumonia (maedi-visna) in sheep." Veterinary Microbiology 17, no. 3 (1988): 237–50. http://dx.doi.org/10.1016/0378-1135(88)90068-5.

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10

Cutlip, Randall C., and Howard D. Lehmkuhl. "Eradication of ovine progressive pneumonia from sheep flocks." Journal of the American Veterinary Medical Association 188, no. 9 (1986): 1026–27. https://doi.org/10.2460/javma.1986.188.09.1026.

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SUMMARY Two management methods for controlling ovine progressive pneumonia in sheep were evaluated. By a test and cull method, wherein seropositive sheep were culled from the flock, the causative virus was eradicated from a closed flock and controlled in an open flock. By an isolate-and-test method, wherein lambs were removed from infected ewes before nursing and reared in isolation, the virus was eradicated in 1 of 2 attempts to establish virus-free flocks. It was concluded that either method should be effective in controlling ovine progressive pneumonia. Results indicated that annual serolog

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11

Bryson, David G., James F. Evermann, H. Denny Liggitt, William J. Foreyt, and Roger G. Breeze. "Studies on the pathogenesis and interspecies transmission of respiratory syncytial virus isolated from sheep." American Journal of Veterinary Research 49, no. 8 (1988): 1424–30. https://doi.org/10.2460/ajvr.1988.49.08.1424.

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SUMMARY Inoculation of lambs with an ovine isolate of respiratory syncytial virus (rsv) by a combined intranasal and intratracheal route resulted in mild respiratory tract illness, with respiratory tract lesions. Lung lesions were characterized by bronchitis and bronchiolitis, hyperplasia of bronchial and bronchiolar epithelium, peribronchiolar and perivascular accumulations of lymphocytes, alveolar septal thickening, and collapse. Respiratory syncytial virus was recovered from the respiratory tract of inoculated lambs, and rsv antigen was demonstrated by immuno-peroxidase staining of bronchio

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12

Brogden, K. A., V. C. Kalfa, M. R. Ackermann, D. E. Palmquist, P. B. McCray, and B. F. Tack. "The Ovine Cathelicidin SMAP29 Kills Ovine Respiratory Pathogens In Vitro and in an Ovine Model of Pulmonary Infection." Antimicrobial Agents and Chemotherapy 45, no. 1 (2001): 331–34. http://dx.doi.org/10.1128/aac.45.1.331-334.2001.

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ABSTRACT Cathelicidins are antimicrobial peptides from sheep (SMAP29 and SMAP34), rabbits (CAP11 and CAP18), rodents (CRAMP), and humans (FALL39, LL37, and h/CAP18). In a broth microdilution assay against nine ovine pathogens, SMAP29, SMAP34, mouse CRAMP, CAP18, CAP1831, CAP1828, CAP1822, and CAP1821a were the most active, with MICs as low as 0.6 μg/ml. Other cathelicidins were less active. In lambs with pneumonia, 0.5 mg of SMAP29 reduced the concentration of bacteria in both bronchoalveolar lavage fluid and consolidated pulmonary tissues. Hence, the antimicrobial activity of SMAP29 suggests

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13

Hassenin, Amira Saad Helal, and Akram Dossier Mohdi Khan. "Histopathological and Molecular Identification and Characterization of Pneumonic Pasteurellosis in Sheep and Goats from Outbreaks at AS-Sharika Province, Egypt." European Journal of Veterinary Medicine 4, no. 4 (2024): 1–5. http://dx.doi.org/10.24018/ejvetmed.2024.4.4.127.

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Pneumonic Pasteurellosis highly fatal septicemic disease in multi-animal species in bovine, ovine, Poultry and swine. The strain identified from ovine pneumonia were characterized by MLST (Multi-host and RIRDC databases) and virulence-associated gene (VAG) typing and compared with bovine isolates. Recording outbreak of pasteurellosis with high mortality & History of several deaths in different farm and homeowner cases of sheep and goats with severe respiratory illness after shipping them from long distance Elarish and Sinai in period to El-Sharqia province. Most cases that still live are t

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14

Borquez Cuevas, Mercedes Yannin, Juan Francisco Hernández Chávez, Betsy Armenta Leyva, Jesús Raymundo Cedillo Cobián, and Ramón Miguel Molina Barrios. "Ovine Progressive Pneumonia: Diagnosis and Seroprevalence in the South of Sonora, Mexico." Case Reports in Veterinary Medicine 2021 (February 4, 2021): 1–4. http://dx.doi.org/10.1155/2021/6623888.

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Ovine progressive pneumonia (OPP) is the most severe presentation of small ruminant lentivirus (SRLV) infection known as Maedi-Visna. Serological evidence in Mexico of the presence of this lentivirus was published in 1986. After that, studies revealed that SRLVs have a broad distribution in Mexico by detecting antibodies or/and molecular tests; however, a descriptive case of the disease has not been published. This work’s objective was to describe the diagnosis of a case of OPP through lesion description, serology, and molecular test. The histopathological study showed that lymph follicular hy

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15

Galecio, Juan Sebastián, Elena Badillo, Elisa Escudero, Juan Carlos Corrales, María Teresa Yuste, and Pedro Marín. "Antimicrobial Susceptibility of Pasteurella multocida Isolated from Sheep with Fibrinous Pneumonia." Acta Veterinaria 73, no. 2 (2023): 171–78. http://dx.doi.org/10.2478/acve-2023-0013.

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Abstract Ovine respiratory complex is a significant cause of death in sheep flocks, where Pasteurella multocida is the most frequent microorganisms isolated from animals with pneumonia. There is an urgent need to refine the use of different antimicrobials to avoid the problem of antimicrobial resistance and optimize the control of this disease in ovine livestock. The first step in approaching this problem is gaining an insight into the antimicrobial susceptibility of ovine pathogens. This study evaluated the in vitro activity of tildipirosin, gamithromycin, oxytetracycline, and danofloxacin ag

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16

VOUGIDOU (Χ. ΒΟΥΓΙΔΟΥ), C., V. SANDALAKIS (Β. ΣΑΝΤΑΛΑΚΗΣ), A. PSAROULAKI (Α. ΨΑΡΟΥΛΑΚΗ), E. PETRIDOU (Ε.Ι. ΠΕΤΡΙΔΟΥ), W. DONACHIE, and L. EKATERINIADOU (Λ.ΑΙΚΑΤΕΡΙΝΙΑΔΟΥ). "Serotypic diversity and sequence variation of the ompA gene among Mannheimia haemofytica isolates from domestic ruminants." Journal of the Hellenic Veterinary Medical Society 63, no. 1 (2017): 13. http://dx.doi.org/10.12681/jhvms.15389.

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Pneumonia caused by Mannheìmia haemolytica is an important disease of ruminants. Because of its economic significance, several methods have been used to study the pathogenicity and epidemiology of M. haemolytica. The objectives of this study were to provide data about the prevalence of the different serotypes of the bacterium and to investigate the genetic diversity of a significant virulence factor, the ompA gene. Two methods, DNA sequencing analysis and DGGli, were used to study the polymorphisms of the ompA gene. Ninety-four isolates from pneumonic lungs were investigated. Capsular scrotypi

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17

Cid, D., A. García-Alvarez, L. Domínguez, J. F. Fernández-Garayzábal, and A. I. Vela. "Pasteurella multocida isolates associated with ovine pneumonia are toxigenic." Veterinary Microbiology 232 (May 2019): 70–73. http://dx.doi.org/10.1016/j.vetmic.2019.04.006.

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18

Cutlip, Randall C., Howard D. Lehmkuhl, Kim A. Brogden, and Jerome M. Sacks. "Breed susceptibility to ovine progressive pneumonia (maedi/visna) virus." Veterinary Microbiology 12, no. 3 (1986): 283–88. http://dx.doi.org/10.1016/0378-1135(86)90057-x.

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19

Perk, K., S. G. Irving, A. Yaniv, and A. Gazit. "Appearance of ovine progressive pneumonia virus outside the United States." American Journal of Veterinary Research 46, no. 10 (1985): 2133–35. https://doi.org/10.2460/ajvr.1985.46.10.2133.

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SUMMARY A recently isolated Israeli retrovirus from a sheep with maedi-visna was compared with other retroviruses, using cDNA-RNA hybridization in solution. The Israeli isolate was shown to have close, if not identical, genetic homologic features with the ovine progressive pneumonia virus reported in the United States, rather than with those of the maedivisna viruses of European origin.

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20

Goyal, Sagar M., Muhammad A. Khan, Scott W. McPherson, Robert A. Robinson, and William J. Boylan. "Prevalence of antibodies to seven viruses in a flock of ewes in Minnesota." American Journal of Veterinary Research 49, no. 4 (1988): 464–67. https://doi.org/10.2460/ajvr.1988.49.04.464.

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SUMMARY Blood samples were collected from a flock of healthy ewes at a University of Minnesota research station. Sera from these blood samples were tested for antibodies against 7 viruses, using 3 tests (eg, virus-neutralization test for bovine viral diarrhea virus, infectious bovine rhinotracheitis virus, bovine adenovirus type 3, and bovine respiratory syncytial virus; hemagglutination inhibition test for parainfluenza virus type 3; and agar-gel immunodiffusion test for lentivirus of ovine progressive interstitial pneumonia and bluetongue virus). The number of seropositive ewes for each anti

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21

Cutlip, Randall C., Howard D. Lehmkuhl, Kim A. Brogden, and Steven R. Bolin. "Mastitis associated with ovine progressive pneumonia virus infection in sheep." American Journal of Veterinary Research 46, no. 2 (1985): 326–28. https://doi.org/10.2460/ajvr.1985.46.02.326.

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SUMMARY Eighteen ewes were experimentally infected with ovine progressive pneumonia virus and their mammary glands were examined for lesions and virus at 2.5 to 10 years postinoculation. Lesions were seen in 14 of 18 sheep; virus was isolated from 4 of 8 sheep. Lesion consisted of an interstitial accumulation of lymphocytes with periductal lymphoid nodules, and epithelial vacuolation and necrosis at the site of the lymphoid nodules.

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22

Ellis, J. A., and J. C. Demartini. "Ovine interleukin-2: Partial purification and assay in normal sheep and sheep with ovine progressive pneumonia." Veterinary Immunology and Immunopathology 8, no. 1-2 (1985): 15–25. http://dx.doi.org/10.1016/0165-2427(85)90106-0.

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23

Cutlip, Randall C., Howard D. Lehmkuhl, Kim A. Brogden, and Arlan W. McClurkin. "Vasculitis associated with ovine progressive pneumonia virus infection in sheep." American Journal of Veterinary Research 46, no. 1 (1985): 61–64. https://doi.org/10.2460/ajvr.1985.46.01.61.

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SUMMARY Vasculitis, involving small muscular arteries and arterioles, was found in 5 of 18 sheep naturally infected with ovine progressive pneumonia (opp) virus and in 5 of 11 sheep experimentally infected with opp virus. In order of frequency, arterial lesions were seen in carpal joint capsules, kidneys, meninges, brains, lungs, and tracheas. The lesions were intramural edema and hemorrhage, mononuclear cell infiltration, fibrinoid necrosis of media, and thrombosis. The vascular lesions were frequently associated with interstitial pneumonitis, arthritis, and encephalitis also induced by opp v

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24

Dorchies, P., J. Yilma, and J. Savey. "Prevalence of lung abscesses and interstitial pneumonia in ovine oestrosis." Veterinary Record 133, no. 13 (1993): 325. http://dx.doi.org/10.1136/vr.133.13.325.

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25

Massoudi, Amir, Ghader Jalilzadeh-Amin, Bahram Dalir- Naghadeh, and Siamak Asri-Rezaei. "Ascorbic acid and thiamine as adjunctive therapy for ovine pneumonia." Small Ruminant Research 236 (July 2024): 107293. http://dx.doi.org/10.1016/j.smallrumres.2024.107293.

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26

Herrmann-Hoesing, Lynn M., Howard D. Lehmkuhl, and Randall C. Cutlip. "Minimum intravenous infectious dose of ovine progressive pneumonia virus (OPPV)." Research in Veterinary Science 87, no. 2 (2009): 329–31. http://dx.doi.org/10.1016/j.rvsc.2009.01.006.

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27

Elad, D. "Isolation of Neisseria cuniculi from a case of ovine pneumonia." Veterinary Microbiology 21, no. 2 (1989): 185–88. http://dx.doi.org/10.1016/0378-1135(89)90031-x.

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28

Herrmann-Hoesing, Lynn M., Stephen N. White, Gregory S. Lewis, Michelle R. Mousel, and Donald P. Knowles. "Development and Validation of an Ovine Progressive Pneumonia Virus Quantitative PCR." Clinical and Vaccine Immunology 14, no. 10 (2007): 1274–78. http://dx.doi.org/10.1128/cvi.00095-07.

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ABSTRACT Ovine progressive pneumonia virus (OPPV) infects at least one sheep in 81% of U.S. sheep flocks, as determined by serology, and can cause viral mastitis, arthritis, dyspnea, and cachexia. Diagnostic tests that quantify OPPV proviral load in peripheral blood leukocytes (PBL) provide an additional method for identification of infected sheep and may help to further understanding of the pathogenesis of OPPV-induced disease. In this study, we compared a new OPPV real-time quantitative PCR (qPCR) assay specific for the transmembrane region of the envelope gene (tm) with a competitive inhibi

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29

Herrmann-Hoesing, Lynn M., Stephen N. White, Michelle R. Mousel, Gregory S. Lewis, and Donald P. Knowles. "Ovine progressive pneumonia provirus levels associate with breed and Ovar-DRB1." Immunogenetics 60, no. 12 (2008): 749–58. http://dx.doi.org/10.1007/s00251-008-0328-9.

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30

Maslak, Donna M., and Mary Jo Schmerr. "Antigenic relatedness between ovine progressive pneumonia virus (OPPV) and HIV-1." Comparative Immunology, Microbiology and Infectious Diseases 16, no. 2 (1993): 103–11. http://dx.doi.org/10.1016/0147-9571(93)90002-m.

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31

Kwang, Jimmy, Jim Keen, Randall C. Cutlip, and E. Travis Littledike. "Evaluation of an ELISA for Detection of Ovine Progressive Pneumonia Antibodies using a Recombinant Transmembrane Envelope Protein." Journal of Veterinary Diagnostic Investigation 5, no. 2 (1993): 189–93. http://dx.doi.org/10.1177/104063879300500208.

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An enzyme-linked immunosorbent assay (ELISA) was developed using a recombinant protein corresponding to the N'-terminal hydrophilic region of transmembrane glycoprotein (TM) of ovine lentivirus. This assay reproducibly detected antibodies in sera from 207 of 212 ovine progressive pneumonia (OPP) virus-infected sheep, and the recombinant TM ELISA accurately identified 26% (35 vs. 9) more seropositive samples than did the agar gel immunodiffusion test when applied to 100 sera from an infected flock. This assay also yielded no false-positive results in 14 true negative sera. Results of these expe

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32

Li, Hong, Donal O'Toole, Okjin Kim, J. Lindsay Oaks, and Timothy B. Crawford. "Malignant Catarrhal Fever-like Disease in Sheep after Intranasal Inoculation with Ovine Herpesvirus-2." Journal of Veterinary Diagnostic Investigation 17, no. 2 (2005): 171–75. http://dx.doi.org/10.1177/104063870501700212.

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A malignant catarrhal fever (MCF)–like disease was induced experimentally in 3 sheep after aerosol inoculation with ovine herpesvirus-2 (OvHV-2). Each of 3 OvHV-2–negative sheep was nebulized with 2 ml of nasal secretions containing approximately 3.07 − 109 OvHV-2 DNA copies from a sheep experiencing an intensive viral-shedding episode. Ovine herpesvirus-2 DNA became detectable by polymerase chain reaction in the peripheral blood leukocytes of all 3 sheep within 3 days, and all 3 seroconverted between 6 and 8 days postinfection (PI). The sheep developed clinical signs, with copious mucopurulen

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33

Chandrashekar KM, Shashidhar Ballari, Sanjeev Kumar M, Akshata S. Angadi, Pradeep Chawhan, and Shivaraj B M. "Histopathology, Isolation and Molecular Detection of Pasturella multocida from Sheep in Gadag Region of Karnataka, India." UTTAR PRADESH JOURNAL OF ZOOLOGY 45, no. 5 (2024): 187–94. http://dx.doi.org/10.56557/upjoz/2024/v45i53944.

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Bacterial pneumonia is the most common respiratory problem in small ruminants. The heart blood and lung tissue samples from two dead sheep suffering from pneumonia at the age of six month were subjected for histopathology, bacterial isolation & identification and antibiogram. Acute fibrinous bronchopneumonia was observed at necropsy and histopatholgy. The isolates were identified as P. multocida based on cultural and biochemical properties, and additionally confirmed by species-specific PCR amplification of KMT1 (Multocida toxin hydrolase gene) gene with the amplicon of 460 bp. The antibio

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34

Headley, Selwyn Arlington, Alais Maria Dall Agnol, Felipe Martins Negreiros Navolar, et al. "Ovine gammaherpesvirus-2 infection associated with chronic interstitial pneumonia in a sheep." Microbial Pathogenesis 161 (December 2021): 105220. http://dx.doi.org/10.1016/j.micpath.2021.105220.

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35

DeMartini, James C., Scott J. Brodie, Andres de la Concha-Bermejillo, John A. Ellis, and Michael D. Lairmore. "Pathogenesis of Lymphoid Interstitial Pneumonia in Natural and Experimental Ovine Lentivirus Infection." Clinical Infectious Diseases 17, Supplement_1 (1993): S236—S242. http://dx.doi.org/10.1093/clinids/17.supplement_1.s236.

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36

Juste, Ramón A., Troy L. Ott, Jimmy Kwang, Fuller W. Bazer та Andrés de la Concha-Bermejillo. "Effects of recombinant ovine interferon-τ on ovine lentivirus replication and progression of disease". Microbiology 81, № 2 (2000): 525–32. http://dx.doi.org/10.1099/0022-1317-81-2-525.

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The antiviral effects of recombinant ovine interferon-τ (roIFN-τ) were studied in 26 lambs inoculated with ovine lentivirus (OvLV) or mock-infected. Six of the OvLV-infected lambs and three of the mock-infected lambs were treated with 106 antiviral units (AVU) per kg roIFN-τ daily for 30 days starting at day 0 post-inoculation (p.i.) and twice a week thereafter (early treatment). Six of the OvLV-infected lambs and three of the mock-infected lambs were treated with 106 AVU/kg roIFN-τ daily for 30 days starting at day 150 p.i. and twice a week thereafter (late treatment). Six OvLV-infected and t

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37

Miller, Margaret A., James R. Turk, Stuart L. Nelson, et al. "Chlamydial Infection in Aborted and Stillborn Lambs." Journal of Veterinary Diagnostic Investigation 2, no. 1 (1990): 55–58. http://dx.doi.org/10.1177/104063879000200110.

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Chlamydia psittaci is a major cause of ovine abortion in the fourth to fifth months of gestation. During the lambing seasons of 1986, 1987, and 1988, fetuses from 52 cases of ovine abortion, stillbirth, or perinatal death were submitted to the laboratory for necropsy examination. Placenta or fetal tissues from 34 cases were cultured on mouse L cells for C. psittaci. Chlamydia psittaci was identified by immunofluorescence on cultures in 20 of these cases. The major gross lesion consistently associated with Chlamydial abortion was placentitis with multifocal cotyledonary necrosis and accumulatio

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38

N., Sai Manasa V. Bhuvana sri Niharaika Behera T. Nagendra Reddy. "Phenotypic Characterization And Antibiogram Patterns Of Clinical Isolates From Ovine Pneumonia In And Around Tirupati." Vet Farm Frontier 02, no. 04 (2025): 11–14. https://doi.org/10.5281/zenodo.15362094.

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Respiratory infections are the common in all age group of sheep leading to significant economic losses to sheep farmers and Industry. Microbial resistance to the antibiotics is a huge problem in the treatment of infections. In keeping in view this research study was conducted among twenty sheep flocks in and around Tirupati. Nasal discharges were collected from the ailing sheep using sterile swabs and were labeled and pooled as farm wise.  The collected samples were inoculated in nutrient broth and BHI broth, incubated   at 37<sup>0</sup>C for 24 Hrs and later growth was observe

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Clark, R. K., D. A. Jessup, M. D. Kock, and R. A. Weaver. "Survey of desert bighorn sheep in California for exposure to selected infectious diseases." Journal of the American Veterinary Medical Association 187, no. 11 (1985): 1175–79. https://doi.org/10.2460/javma.1985.187.11.1175.

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SUMMARY From February 1983 to June 1985, 188 desert bighorn sheep (Ovis canadensis nelsoni, = 161 and Oc cremnobates, =27) from 18 herds in 17 mountain ranges and one captive herd were caught, marked, and had blood, fecal, and nasal mucus samples collected. Nasal swab specimens were cultured bacteriologically and virologically specifically for parainfluenza-3 (pi-3) virus. Bacterial flora differed from herd to herd. Pathogenic pneumophilic bacteria (eg, Pasteurella sp) seldom were found. Parainfluenza-3 virus was isolated from 6 bighorn sheep in 3 herds. Fecal specimens were examined for paras

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40

Thompson, Jesse, Fangrui Ma, Meghan Quinn, and Shi-Hua Xiang. "Genome-Wide Search for Host Association Factors during Ovine Progressive Pneumonia Virus Infection." PLOS ONE 11, no. 3 (2016): e0150344. http://dx.doi.org/10.1371/journal.pone.0150344.

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41

Murakami, K., P. Enkhbaatar, K. Shimoda, et al. "Aerosolized Recombinant Antithrombin Attenuates Ovine Acute Lung Injury with Smoke Inhalation and Pneumonia." Journal of Burn Care & Rehabilitation 24 (March 2003): S56. http://dx.doi.org/10.1097/00004630-200303002-00027.

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42

M. AL-Darraji, A., S. H. Dhahir, and M. J. Alwan. "AETIOLOGICAL AND PATHOLOGICAL STUDY ON OVINE AND CAPRING ABORTED FOETI." Iraqi Journal of Veterinary Medicine 16, no. 1 (1992): 59–71. http://dx.doi.org/10.30539/ijvm.v16i1.1614.

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Bacteriological and histopathological investigations were conducted on ovine and caprine aborted foeti, ten each, collected from different parts of Iraq, to determine the posible etiology of abortion and to characterize the histopathological changes associated with them. Microbial isolation revealed the following isolates: Brucella melitensis(4), Listeria monocytogens(3), Chlamydia psittaci(2) and Campylobacter foetus").  Histopathological changes were evident in specimens of placenta and aborted foeti. These are: Bacterial colonies in the necrotic chorionic epithelial cells, bronchopneu

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43

Lima, Pamela Aparecida, Kiyoko Uemura Utiumi, Karen Yumi Ribeiro Nakagaki, et al. "Diagnoses of Ovine Infection by the Serotype-4 Bluetongue Virus on Minas Gerais, Brazil." Acta Scientiae Veterinariae 44, no. 1 (2016): 5. http://dx.doi.org/10.22456/1679-9216.84210.

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Background: Bluetongue (BT) is a viral disease transmitted by hematophagous vectors of the genus Culicoides. In Brazil, the identifcation of antibodies against the virus has been held for over thirty years, however clinicopathological diagnosis of the disease are scarce. The frst reported case occurred in the state of Paraná in 2001, confrmed by isolation and identifcation of serotype 12 of BTV. In the state of Rio Grande do Sul, in 2009, two outbreaks confrmed and was identifed the serotype 12. Serotype 4 was isolated during an outbreak in the state of Rio de Janeiro in 2013. This study descr

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M. Herrmann-Hoesing, Lynn, Stephen N. White, Liam E. Broughton-Neiswanger, et al. "Ovine Progressive Pneumonia Virus Is Transmitted More Effectively via Aerosol Nebulization than Oral Administration." Open Journal of Veterinary Medicine 02, no. 03 (2012): 113–19. http://dx.doi.org/10.4236/ojvm.2012.23019.

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45

Gerstner, Shelley, Jeffrey J. Adamovicz, John V. Duncan, et al. "Prevalence of and risk factors associated with ovine progressive pneumonia in Wyoming sheep flocks." Journal of the American Veterinary Medical Association 247, no. 8 (2015): 932–37. http://dx.doi.org/10.2460/javma.247.8.932.

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46

Madewell, B. R., E. Ameghino, H. Rivera, L. Inope, and J. De Martini. "Seroreactivity of Peruvian sheep and goats to small ruminant lentivirus-ovine progressive pneumonia virus." American Journal of Veterinary Research 48, no. 3 (1987): 372–74. https://doi.org/10.2460/ajvr.1987.48.03.372.

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SUMMARY Sera from 3,369 sheep and 1,394 goats in Peru were examined by agar-gel immunodiffusion for antibodies to ovine progressive pneumonia virus (oppv). The point prevalence rates for antibodies to oppv in sheep were 1.7% to 40.6% (mean, 19.02%) in the 7 flocks studied, whereas for goats, the point prevalence rates for antibodies that cross-reacted with oppv in 12 herds were 0.0% to 45.1%. For sheep, a direct association between increasing age and increasing seroreactivity to oppv was established, and there was evidence to indicate that lambs born to primiparous ewes and raised separated fr

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47

Varea, R., E. Monleón, C. Pacheco, et al. "Early Detection of Maedi-Visna (Ovine Progressive Pneumonia) Virus Seroconversion in Field Sheep Samples." Journal of Veterinary Diagnostic Investigation 13, no. 4 (2001): 301–7. http://dx.doi.org/10.1177/104063870101300404.

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The aim of this work was to investigate whether an enzyme-linked immunosorbent assay (ELISA) was useful for early detection of maedi-visna virus (MVV) infection in sheep under field conditions. An ELISA based on p25 recombinant protein and a gp46 synthetic peptide was used. Sequentially obtained serum samples ( n = 1,941) were studied for 4 years. ELISA results were compared with those of the agar gel immunodiffusion (AGID) test, and results of both tests were compared with a reference result established using consensus scores for at least 2 of 3 serologic techniques (AGID, ELISA, and western

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Bulgin, Marie S. "Ovine Progressive Pneumonia, Caprine Arthritis-Encephalitis, and Related Lentiviral Diseases of Sheep and Goats." Veterinary Clinics of North America: Food Animal Practice 6, no. 3 (1990): 691–704. http://dx.doi.org/10.1016/s0749-0720(15)30841-0.

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Madewell, Bruce R., David B. Gill, and James F. Evermann. "Seroprevalence of ovine progressive pneumonia virus and other selected pathogens in California cull sheep." Preventive Veterinary Medicine 10, no. 1-2 (1990): 31–39. http://dx.doi.org/10.1016/0167-5877(90)90048-m.

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Badri Abboud, Hayder. "THE PREVALENCE AND RELATION OF OVINE PROGRESSIVE PNEUMONIA TO PASTEURELLA HAEMOLYTICA IN TWO FLOCKS OF SHEEP." Iraqi Journal of Veterinary Medicine 12, no. 1 (1988): 70–85. http://dx.doi.org/10.30539/ijvm.v12i1.1686.

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The incidence of ovine progressive pneumonia (OPP), and its relation to Pasteurella haemolytica in two naturally infected flocks of sheep of different ages was studied. The Ager Gel Immunodiffusion test was used for testing for OPP. Nasal Swabs were taken for the isolation of P. haemolytica. Four ewes were necropsied, anu both gross and histopathological examinations were done. A few seronegative sheep sero-converted and the seropositive sheep remained positive. Seropositive sheep did not develop clinical illness or lesions of the disease at Lambing (stress factor) necropsy. to predisposes inf

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