接种疫苗究竟有什么作用?如果说抗生素的发明和应用,使人类具有了抵抗传染病的能力,那疫苗的发明和应用则使人类具有了消灭传染病的能力。无论环境多么清洁,许多传染病依然能传播。如果不进行免疫接种,一些已经不常见的疾病,如脊灰和麻疹,也会很快重新出现。有人不能打疫苗吗?有。打疫苗禁忌证一般分两大类,一类是暂时禁忌证;另 What is the role of vaccination? If the invention and application of antibiotics, so that human beings have the ability to resist infectious diseases, then the invention and application of vaccines make humans have the ability to eliminate infectious diseases. No matter how clean the environment is, many infectious diseases can still spread. Without immunization, some less common diseases, such as polio and measles, will quickly reappear. Can anyone get a vaccine? Vaccination contraindications generally divided into two categories, one is a temporary contraindication; the other