H.C. Chauhan, S.K. Biswas, K. Chand, W. Rehman, B. Das, A.I. Dadawala, B.S. Chandel, H.N. Kher & B. Mondal

Summary (continued)

Sequence analyses revealed that these isolates were very closely related to a BTV-1 (strain SKN-8) isolated from Culicoides vectors captured on the same farm one month after the occurrence of abortion. Isolation of BTV-1 from fetuses is probably evidence of transplacental transmission of the wild-type strain, because attenuated or laboratory-adapted BTV-1 strains have never been used in this region. This may have important implications in the epidemiology of bluetongue, considering the presence of many BTV serotypes in India.