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实时疫苗通过复制（1-2周）保护造成组织损伤（1-2周）的持续时间不长（取决于疾病！）Replication and infection of host cell simulate original pathogen Better immune response due to simulation of natural infection Local and systemic protection Directed against different parts of the (total) virus: ‘endogenic & exogenic antigens' Mutations to original form might occur Spreading and mass application possible Often cheap per dose (compared to inactivated) Fragile to warmth and to detergents High level of MDA / Antibodies lower humeral response
疫苗接种
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