| putative vaccine breakthrough event associated with heterotypic rotavirus infection in newborn calves, turkey, 2015. | group a rotaviruses (rva) are regarded as major enteric pathogens of large ruminants, including cattle. rotavirus vaccines administered to pregnant cows are commonly used to provide passive immunity that protects newborn calves from the clinical disease. in this study we report the detection of rva from calves with severe diarrhea in a herd regularly vaccinated to prevent enteric infections including rva. diarrheic disease was observed in newborn calves aged 4-15days, with high morbidity and mor ... | 2017 | 28284625 |