Eichhorn W, Bachmann P A, Baljer G, Plank P, Schneider P
Dev Biol Stand. 1983;53:237-43.
The protective effect of a combined rotavirus/enterotoxigenic E. coli K99 vaccine against naturally occurring neonatal diarrhoea was evaluated in two dairy and two beef herds. Before vaccination, frequency of diarrhoea in these herds was 46% up to 60% with losses of 7% to 20%. After vaccination of pregnant cows and heifers mild diarrhoea occurred in 14% to 20% of their calves, one out of 144 calves died with enteric symptoms. In 13 out of 26 calves of nonvaccinated controls where diarrhoea was noted, one of them died. K99-positive enterotoxigenic E. coli were not detected in any of the faeces tested. Rotavirus was found in one of the beef herds.
在两个奶牛群和两个肉牛群中评估了轮状病毒/产肠毒素大肠杆菌K99联合疫苗对自然发生的新生犊牛腹泻的保护作用。在接种疫苗前，这些牛群中腹泻的发生率为46%至60%，损失率为7%至20%。对怀孕母牛和小母牛接种疫苗后，其犊牛中有14%至20%出现轻度腹泻，144头犊牛中有1头死于肠道症状。在26头出现腹泻的未接种疫苗对照犊牛中，有13头出现腹泻，其中1头死亡。在检测的任何粪便中均未检测到K99阳性产肠毒素大肠杆菌。在其中一个肉牛群中发现了轮状病毒。
