2 research outputs found
Seasonal analysis of leptospirosis in apparently healthy dairy cattle of Pananchery panchayat in Thrissur district, Kerala
Leptospirosis is an economically important zoonotic bacterial disease of cattle with global
distribution. The present study investigated the seroprevalence and distribution of leptospiral
serovars in cattle population in Pananchery panchayat of Thrissur district, Kerala. From 52
apparently healthy dairy cattle, serum samples were collected in both pre-monsoon and postmonsoon
seasons. All samples were subjected to microscopic agglutination test (MAT) against 13
serovars of Leptospira spp. Among the samples tested, 13 (25 per cent) samples in pre-monsoon
and 19 (36.54 per cent) samples in post-monsoon were found to be positive. The predominant
serovars detected in pre-monsoon were Hardjo (29.41 per cent) followed by Grippotyphosa
(17.64 per cent), Bataviae and Pomona (11.76 per cent each). Similarly in post-monsoon, Hardjo
(28.57 per cent) followed by Grippotyphosa (23.81 per cent), and Bataviae (19.05 per cent) were
identified as the most common serovars. Higher seroprevalence of disease in apparently healthy
cattle in post-monsoon compared to pre-monsoon indicate the influence of rainfall on occurrence
of leptospirosis