Thain J A, Baxter-Jones C, Wilding G P, Cullen G A
Res Vet Sci. 1984 May;36(3):320-5.
An inactivated Salmonella hadar vaccine was administered to parent turkey stock and the progeny were subjected to challenge with S hadar. There was some evidence that eggs from vaccinated birds were more resistant to growth of the organism. When compared with similarly infected poults from unvaccinated parents, a markedly different serological picture and pattern of salmonella excretion was seen. It appeared that the passive immunity induced by the vaccine encouraged the faster establishment of other gut Enterobacteriacae, even in the presence of large numbers of S hadar.
给种火鸡接种了灭活的哈达沙门氏菌疫苗，然后让其后代接受哈达沙门氏菌的攻击。有证据表明，接种疫苗的禽类所产的蛋对该病菌的生长更具抵抗力。与未接种疫苗的亲本所产的同样受感染的雏鸡相比，其血清学情况和沙门氏菌排泄模式明显不同。看来，疫苗诱导的被动免疫促进了其他肠道肠杆菌科细菌更快地定植，即使存在大量的哈达沙门氏菌也是如此。
