来自WSJ。 https://www.wsj.com/articles/wuhan-starts-testing-to-determine-level-of-immunity-from-coronavirus-11587039175 "Wuhan’s Zhongnan Hospital found that 2.4% of its employees and 2% to 3% of recent patients and other visitors, including people tested before returning to work, had developed antibodies, according to senior doctors there." 以上是原文。武汉中南医院发现他们职工当中2.4%的人有抗体。接受抗体检测的患者和访客中，则有2% - 3%的阳性。 我猜武汉居民中实际有抗体的应该低于2.4%吧，毕竟普通人接触病毒的可能性比医护要低。而且前去接受检测的也不是随机抽取，很有可能是之前有了类似症状的才自己跑去检测。
"Wuhan’s Zhongnan Hospital found that 2.4% of its employees and 2% to 3% of recent patients and other visitors, including people tested before returning to work, had developed antibodies, according to senior doctors there."
"Wuhan’s Zhongnan Hospital found that 2.4% of its employees and 2% to 3% of recent patients and other visitors, including people tested before returning to work, had developed antibodies, according to senior doctors there."
"Wuhan’s Zhongnan Hospital found that 2.4% of its employees and 2% to 3% of recent patients and other visitors, including people tested before returning to work, had developed antibodies, according to senior doctors there."
以上是原文。武汉中南医院发现他们职工当中2.4%的人有抗体。接受抗体检测的患者和访客中，则有2% - 3%的阳性。 我猜武汉居民中实际有抗体的应该低于2.4%吧，毕竟普通人接触病毒的可能性比医护要低。而且前去接受检测的也不是随机抽取，很有可能是之前有了类似症状的才自己跑去检测。
觉得说明不了这个。要看检查的对象，是不是都是确诊过？如果是，说明的是抗体的产生率。如果不是，就说明不了什么。
这说明武汉开始的混乱悲惨是可以避免的。当时很多在医院交叉感染
国内的抗体试剂盒只有30%的灵敏度
主要问题是假阳。
绝大部分应该是无症状感染者，当时没有测或者来不及测或者是当时的技术手段测不出来的。
外面肯定低多了。我外甥在武昌的小区做了两个多月的志愿者，整个小区没有一例，属于无疫情小区。我侄儿单位在华南海鲜附近，全公司60多号人，也就他同屋和他感染自愈。在汉的高中同学无一感染。现在复工前都得查核酸，哪里有那么多的无症状感染者。
真的假的? 有source吗?
开始以为留美的人智商都应该还不错，来了论坛大失所望。