The data from the Red Cross mirrors findings from a Pew Research Center survey last month. They found 25% of Americans said they have had COVID-19, or about one-in-four people. In a survey in September, that number was closer to one-in-seven Americans who said they had contracted COVID-19.
The prevalence of COVID-19 antibodies in blood donations has been increasing, according to the data. Only about 1.5% of blood donations in July had antibodies, which increased to 4% in October and 12% in January. In the first week of March, it was 21%.
只有百分之二十。因为被确诊人数三千万，所以感染后没有症状然后痊愈的人也是三千万左右。
The data from the Red Cross mirrors findings from a Pew Research Center survey last month. They found 25% of Americans said they have had COVID-19, or about one-in-four people. In a survey in September, that number was closer to one-in-seven Americans who said they had contracted COVID-19.
The prevalence of COVID-19 antibodies in blood donations has been increasing, according to the data. Only about 1.5% of blood donations in July had antibodies, which increased to 4% in October and 12% in January. In the first week of March, it was 21%.
https://zhuanlan.zhihu.com/p/46819931
没有看过新闻说感染率与身体健康有关。