һЩÊý¾ÝAnother study to consider when comparing vaccines is one from the Mayo Clinic earlier this month, which is awaiting a full review. That study found the risk of suffering a breakthrough COVID-19 infection with the delta variant after being fully vaccinated with the Moderna vaccine may be much lower than the risk for those who received the Pfizer vaccine. The study reported that in July in Florida, where COVID cases are at an all-time high and the delta variant is prevalent, the risk of a breakthrough case was 60% lower for Moderna recipients as compared to Pfizer recipients. Similarly, in Minnesota last month, the authors found that the Moderna vaccine (also known as mRNA-1273) was 76% effective at preventing infection, but the Pfizer vaccine (known as BNT162b2) was 42% effective. ------------------------------------------------------------------------------------------------------------------------------- ±È½ÏÒßÃçʱҪ¿¼ÂǵÄÁíÒ»ÏîÑо¿ÊDZ¾ÔÂÔçЩʱºò÷°ÂÕïËùµÄÒ»ÏîÑо¿£¬¸ÃÑо¿ÕýÔڵȴýÈ«ÃæÉó²é¡£ ¸ÃÑо (more...)