·2,447,543篇论文数据,部分数据来源于NoteExpress
流感疫苗在降低流感症状与减少请假天数上有一些效果,但没有证据显示流感疫苗影响并发症,如:肺炎或传染。
Influenza vaccines have a modest effect in reducing influenza symptoms and working days lost. There is no evidence that they affect complications, such as pneumonia, or transmission.
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