机体免疫系统将人侵的病原体局限化 而不能将其清除，待机体免疫功能下降 时发病。此种表现属于

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31685' and id < 2536675 and id<>'2536675' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31685' and id > 2536675 and id<>'2536675' order by id asc limit 5