Vasilev V D, Stoev I, Khristova Kh V
Vet Med Nauki. 1978;15(7):11-8.
Studies were carried out on the immune response in pigs that had been treated at various intervals following birth with a live vaccine against erysipelothrix rhusiopathiae. The pigs originated from sows that had been vaccinated against the disease on the 80th day of pregnancy. Both biologic and morphologic investigation were performed. It was found that passive immunity protected the small pigs against an experimental infection up to the age of 45 days, inhibiting during this period being the action of the vaccine applied. The young pigs built up an active immunity against swine erysipelas after their vaccination at the age of 2 months, which protected them against control challenging, while the nonvaccinated animals reacted with a rise in temperature and reddening at the site of scarification. The morphologic studies confirmed the results of the biologic experiments.
对出生后不同时间用猪丹毒活疫苗处理的猪的免疫反应进行了研究。这些猪来自在怀孕第80天接种过该病疫苗的母猪。进行了生物学和形态学研究。结果发现，被动免疫可保护小猪直至45日龄免受实验性感染，在此期间疫苗的作用受到抑制。2月龄的小猪接种疫苗后产生了针对猪丹毒的主动免疫，这使其免受对照攻击，而未接种疫苗的动物则出现体温升高和划痕部位发红的反应。形态学研究证实了生物学实验的结果。
