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Distribution of maedi-visna virus in different organs of the spontaneously affected small ruminants in India | ||
| Iranian Journal of Veterinary Research | ||
| دوره 25، شماره 1 - شماره پیاپی 86، 2024، صفحه 41-47 اصل مقاله (1.02 M) | ||
| نوع مقاله: Full paper (Original article) | ||
| شناسه دیجیتال (DOI): 10.22099/ijvr.2024.47429.6844 | ||
| نویسندگان | ||
| Sh. Valecha1؛ H. S. Yadav2؛ N. Roopa1؛ S. D. Vinaykumar2؛ M. Bhardwaj3؛ V. Singh4؛ P. Kumar* 4 | ||
| 1MVSc Student in Veterinary Pathology, Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh-243122, India | ||
| 2Ph.D. Student in Veterinary Pathology, Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh-243122, India | ||
| 3Department of Veterinary Microbiology, College of Veterinary Science, CSK Himachal Pradesh Agriculture University, Palampur, Himachal Pradesh-176062, India | ||
| 4Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh-243122, India | ||
| چکیده | ||
| Background: Maedi-visna (MV) is a small ruminant lentiviral (SRLV) disease affecting sheep and goats, and causes pathological alterations in various organs including lungs, pulmonary lymph nodes, mammary glands, joints, and CNS. Aims: Present study was focused to detect the MV virus (MVV) nucleic acid and MVV p28 antigen in different organs of the spontaneously MVV affected sheep and goats. Methods: Total of 657 samples were collected from sheep and goats (169 blood, 136 lungs, 96 pulmonary lymph nodes, 74 brain, 54 mammary gland, 78 joints, and 50 spleen) and screened for MVV nucleic acid using nested PCR assay. Serum samples were screened for SRLV antibodies by cELISA. Immunolocalization of MVV was demonstrated by using the polyclonal antibody against p28 antigen by immunohistochemistry in lungs, lymph nodes, mammary glands, and joint tissues. Results: Out of 657 samples, 10.7% (70) were found positive for MVV. Among different organs, lungs showed highest positivity (25.7%) followed by mammary glands (14.8%), blood (9.5%), joint tissues (7.7%), brain (5.4%), and pulmonary lymph node (1.0%). SRLV antibodies were detected in 29.2% of the serum samples of both sheep and goats by cELISA. MVV p28 antigen immunostaining was observed in lungs, lymph nodes, mammary glands, and joint tissues. However, the presence of MVV p28 antigen could not be demonstrated in the brain tissues. Conclusion: The highest positivity of MVV in lung tissues indicated higher predilection of the virus in the pulmonary tissue. | ||
| کلیدواژهها | ||
| Immunohistochemistry؛ Maedi-visna؛ Seroprevalence؛ Small ruminants | ||
| مراجع | ||
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