Antibodies in swine induced by classical swine fever inactivatedvaccines were evaluated by IHA test, and the maternal antibodies in piglets were studied.
采用IHA实验方法监测猪瘟灭活疫苗免疫的猪抗体产生水平，并对仔猪母源抗体的消长规律进行了研究。
2
Production of the live vaccines requires much less chicken embryos than the traditional inactivatedvaccines, which allows large-scale production and massive storage, Chen said.
陈化兰指出，活疫苗的生产需要的鸡胚量远比传统减活疫苗少，使得大量生产和储存称为可能。
3
Despite the paucity of data -related to the use of influenza vaccines during the first -trimester of pregnancy, other inactivatedvaccines (e.g. -tetanus) have proved safe in this context.