[名词解释] 隐性感染

下列哪项不会出现语颤增强 ["肺炎","肺梗死","肺结核","阻塞性肺不张","肺空洞"] 易感人群 显性感染 传播途径 狭义的医学道德范畴不包括 ["权利与义务","良心与荣誉","自主与创新","情感与理智","胆识与审慎"] 隐性感染