https://www.npr.org/sections/coronavirus-live-updates/2020/04/25/844939777/no-evidence-that-recovered-covid-19-patients-are-immune-who-says
• 已恢复的人有可能再得,武汉还有582例无症状 -fourwaves- ♂ (0 bytes) () 04/27/2020 postreply 11:01:49