Snodgrass D R
Ann Rech Vet. 1983;14(4):519-21.
Rotavirus and enterotoxigenic E. coli were found to cause approximately three-quarters of the total number of outbreaks of diarrhoea in young calves. Vaccinating pregnant cows with a combined vaccine of K99 antigen from E. coli and inactivated calf rotavirus stimulated secretion of specific antibodies in colostrum and milk. Calves born to vaccinated cows were completely protected against experimental enterotoxigenic colibacillosis. The efficacy of the rotavirus component is being investigated in field trials from which the early results look promising.
轮状病毒和产肠毒素大肠杆菌被发现导致了大约四分之三的犊牛腹泻暴发总数。用来自大肠杆菌的K99抗原和灭活的犊牛轮状病毒联合疫苗给怀孕母牛接种，可刺激初乳和乳汁中特异性抗体的分泌。接种疫苗的母牛所生的犊牛完全受到保护，免受实验性产肠毒素大肠杆菌病的侵害。轮状病毒成分的功效正在进行田间试验研究，早期结果看起来很有希望。
