Survey on the distribution of cytopathic and non cytopathic strains of bovine viral diarrhoea virus in cattle farms

Bovine viral diarrhoea virus disease is a common disease in cattle population world wide causing severe economic losses . The virus exists in two biotypes , cytopathic (CP)and noncytopathic (NCP). In this study ,theprevalence of both biotypes in cattle farms in Sharkia gavemorate wereinvestigated . The study included virus isolation, serological studies fordetection of viral antigen and antibodies by IP and IF .The result showed that the virus was isolated from 8 animals out of 192 animals with percent of 4.16%. Detection of virus antigen by IP showed that 26 animals were positive out of 192 animals with peof 192 animals with percent of 14.06%. Also, detection of antibodies by IFshowed that 27 animals were positive out of 192 animals with percent of14.06%. The study showed that both BVDV strains biotypes (CP and NCP) excite in cattle and buffaloes farms in Sharkia gavemorate, however NCP were more prevalence.