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疫苗还有保护期,我怎么从来没听说过?难道不是打一针就能管一辈子吗? 这里,让我们一起来接触并了解疫苗的保护期。疫苗的保护期是指人体接种疫苗后,对所针对的传染病产生的免疫保护持续的时间。疫苗的免疫持久性通常与疫苗的抗原成分,抗原的含量及其免疫程序有关。一般活疫苗的免疫持久性比死疫苗要长久。 1.活疫苗的免疫保护期较长由自然病毒经减毒处理后,经工业化生产获得无致病力,有免疫力的减毒活疫苗。由于它可刺激肌体产生免疫力的抗原成分与自然病毒完全相同,因此,其免疫保护作用可持续达10年或更长时间。死疫苗,又称灭活疫苗。由自然病毒或细菌经灭活处理后,经工业化生产获得无致病力,有免疫力的死疫
Vaccines also have a shelf life, how have I never heard of them? Is not it possible to manage a lifetime without a shot? Here, let’s get in touch with and understand the vaccine’s shelf life. Vaccine protection period refers to the human body after vaccination, the infectious disease for the immune protection generated by the duration. Vaccine immunity is often persistent and vaccine antigen composition, antigen content and immune procedures. Immune persistence of live vaccines is generally longer than dead vaccines. 1. Live vaccine longer duration of protection by the natural virus by attenuated treatment, the industrialized production of non-pathogenic, immunocompetent live attenuated vaccine. Because it stimulates the body’s immune system to produce the same antigenic composition as a natural virus, its immune protection lasts for 10 years or more. Dead vaccine, also known as inactivated vaccine. By the natural virus or bacteria inactivated after the industrialized production of non-pathogenic, immune death