My friend is confused

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?

所有跟帖： 

• People are different. My family never took flu shots and never v -周老大- ♂ (0 bytes) () 09/19/2021 postreply 13:15:54

• never visited doctors for flu. -周老大- ♂ (0 bytes) () 09/19/2021 postreply 18:41:32

• 你确定是在完成疫苗接种后两次感染新冠？那这真是闻所未闻 -dudaan- ♂ (221 bytes) () 09/19/2021 postreply 13:46:14

• 熟人打了2针疫苗，一个多月前得了，家人没有（都打过疫苗），他恢复了，没去看病，症状还是很明显的 -hz82000- ♀ (0 bytes) () 09/19/2021 postreply 16:56:05

• 看来打过疫苗的得病毒后的传染性很低。如果全都打过疫苗，病毒就失去传染性了。 -Gingerflower- ♀ (0 bytes) () 09/19/2021 postreply 20:22:52