新冠爆发的早期阶段,一个喷嚏就可能让人们疑心自己是感染了病毒,随着对疫情了解的加深,人们已经熟知的标志性症状包括味觉和嗅觉丧失、发烧、咳嗽、呼吸急促和疲劳。但是感染Delta变种后是否仍然出现类似症状呢,对此,病毒专家表示还是存在细微的差异。麻州总医院(Massachusetts General Hospital)的流行病学家Andre
The new Coronavirus was named 2019-NCoV by the World Health Organization on January 12,2020 .How can we not know how to describe such a significant public health event i