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传染病已经开始流行再做预防接种还可以吗? 人工自动免疫需要一定的时间才能在人体内形成足够量的抗体;有一些疫苗,特别是死疫苗,往往需要间隔一定的时间接种2～3次,方能产生足够量的抗体。因此,当传染病已经开始流行时再开始预防接种已经来不及了。所以,要做好计划免疫,在传染病还没有发生时已经接种完毕,使人群免疫力达到最高水平。但也不能接种太早,因为有些疫苗产生的免疫力维持时间较短。通常,预防接种的时间应在流行季节前1～2个月。
Infectious diseases have begun to do epidemic vaccination can do it? Artificial autoimmunity takes some time to form a sufficient amount of antibodies in the body; some vaccines, especially dead vaccines, often need to be vaccinated at intervals of time 2 to 3 times , Can produce a sufficient amount of antibodies. Therefore, it is already too late to start vaccination once the epidemic has started to take off. Therefore, to do a good job in immunization, vaccination has been completed in the absence of infectious diseases, so that the population reached the highest level of immunity. However, vaccinations can not be done too early because some vaccines produce less sustained immunity. In general, vaccination should be 1 to 2 months before the prevalent season.