A comprehensive study on seroprevalence of bluetongue virus in Haryana state of India.

Aim: The aim of present study was to determine seroprevalence of bluetongue virus (BTV) in Haryana state of India.

Materials and Methods: A total of 803 serum samples, 408 of cattle and 395 of buffalo origin, respectively, were collected from different villages of Haryana. Sampling was done randomly to obtain unbiased results. The samples were evaluated by a competitive enzyme-linked immunosorbent assay for the presence of BTV antibodies.

Results: Overall seroprevalence of BTV antibody in cattle and buffaloes for all 21 districts of Haryana state was found to be 75.49% and 92.91%, respectively. The prevalence of BTV in different agroclimatic zones ranged between 72-77% and 90-94% for cattle and buffalo, respectively. In buffaloes, the BTV seroprevalence was comparatively higher than in cattle.

Conclusion: The study showed that BTV is circulating in cattle and buffalo populations in the Northern part of India.