主题：德国人最新研究证明必须戴口罩 -- 夕曦

下面这段故事很多自媒体都讲过，但为了保证权威性还是引用正规英文论文吧。

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4791421/

1910年中国医生伍连德被派去哈尔滨控制鼠疫，当时认为鼠疫只能通过老鼠和跳蚤传染，伍连德做了尸体解剖后认为可以通过飞沫传染，需要戴口罩，一个法国医生不信，坚决不戴，没几天就中招挂了。

After his arrival at Harbin, Dr. Wu performed the first-ever postmortem exam in China on a Japanese woman who had died from the epidemic. He discovered Yersinia Pestis in the body tissues and further concluded that the epidemic was pneumonic plague, which could be transmitted by human breath or sputum. This was contrary to the general idea that plague could only be transmitted by rats or fleas and could not be transmitted from person to person. His idea surprised all of his scientific peers and was met with widespread disbelief.

Dr. Mesny, a prominent French doctor, was one of those who doubted Dr. Wu’s views. Dr. Mesny himself died of pneumonic plague several days later, after refusing to wear gauze and a mask and succumbing to the epidemic infection. His death shocked the international community.

这个法国医生的行为还是相当值得尊敬的，用自己的生命证明了伍连德的观点，救了更多的人。欧美那些鼓吹老百姓戴口罩没用的，咋不亲自去机场地铁走一圈看看能不能中招呢。从这点来看，英国精英们做的也是相当不错滴，起码为了群体免疫身先士卒啊。。。