My friend is confused

來源: 於 2021-09-19 13:09:02 [舊帖] [給我悄悄話] 本文已被閱讀：次

Friend already got his booster shot due to his old age. 

This morning he is confused about a friend's daughter. She caught COVID19 twice after she is fully vaccinated. And her unvaccinated husband is fine. How could this happen?什麽