Microbes and humans Very few microbes are always pathogenIc △[医学微生物学 Many microbes are potentiall ly pathogenic 条件致病菌-正常菌群 Most microbes are never pathogenic 本课讨论的内容Microbes and humans Very few microbes are always pathogenic Many microbes are potentially pathogenic Most microbes are never pathogenic 医学微生物学 条件致病菌–正常菌群 本课讨论的内容