一种不知名的细菌感染。这种细菌平时各处都有,但通常状况下根本侵染不了人,不能致病。但抵抗力弱的时候,成了致死细菌
一种不知名的细菌感染。这种细菌平时各处都有,但通常状况下根本侵染不了人,不能致病。但抵抗力弱的时候,成了致死细菌
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