一項基於美國的調查顯示，疫苗對新冠肺炎的預防相當有效

https://www.msn.com/en-us/health/medical/breakthrough-covid-cases-rare-among-fully-vaccinated-study/ar-BB1eVxpp?ocid=msedgntp

Researchers examined data from employee health records of more than 36,600 health care workers in California and found that ?less than 1% tested positive for COVID-19 after being fully vaccinated -- meaning both doses plus two weeks for the immunity to build -- with the Pfizer or Moderna vaccines.

Not a single vaccinated health care worker who contracted COVID-19 was hospitalized or died and those who did get sick appeared to have milder symptoms than the unvaccinated, according to the researchers.

所有跟帖： 

• 肯定的，我相信這個！ -yhr- ♀ (0 bytes) () 03/24/2021 postreply 15:25:59

• 我們州打得太慢了， 生病人數上看不出來。 但是死人都減到個位數了，應該是老人得到有效保護了。 -greenonion- ♀ (0 bytes) () 03/24/2021 postreply 19:22:41

• 我們州今天新增病例反彈到3500以上，死亡55 -dudaan- ♂ (0 bytes) () 03/24/2021 postreply 19:36:27

• Wow, wonderful news. 具體數據在這裏： -sourbaby- ♀ (782 bytes) () 03/24/2021 postreply 20:12:48