中文说明：SIR（Susceptibles，Infectives，Recovered）模型来研究如天花，流感，肝炎，麻疹等治愈后均有很强免疫力的传染病
English Description：
In recent years, there are many models of infection, such as smallpox, measles and so on
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中文说明：SIR（Susceptibles，Infectives，Recovered）模型来研究如天花，流感，肝炎，麻疹等治愈后均有很强免疫力的传染病
English Description：
In recent years, there are many models of infection, such as smallpox, measles and so on