Aynaud J M, Launais M
Dev Biol Stand. 1978;41:381-7.
The vaccination of young piglets, with or without passive antibodies of colostral origin, was studied using the Thiverval strain. The various experiments, carried out under practical conditions, allowed us to observe the following phenomena:--in piglets without immunity of maternal origin we observed a classic primary reaction, with vigourous, lasting production of antibodies and resistance to the challenge;--in piglets with immunity of maternal origin, depending on when the vaccination was administered, the production of primary antibodies was non-existent or deficient; however, we noted that piglets vaccinated 35 days after birth resist the challenge.
使用蒂韦瓦尔毒株对有或无初乳来源被动抗体的幼仔猪进行了疫苗接种研究。在实际条件下进行的各种实验使我们观察到以下现象：——在无母源免疫力的仔猪中，我们观察到典型的初次反应，产生了强烈且持久的抗体，并对攻毒具有抵抗力；——在有母源免疫力的仔猪中，根据接种疫苗的时间，初次抗体的产生不存在或不足；然而，我们注意到出生后35天接种疫苗的仔猪能够抵抗攻毒。
