@benny171a @lotzof_gas @activia513 @krtmd @jonathanchait It is the same formulation with an updated strain, which is how flu shots have been updated since forever. You don't need to retest the same vaccine every time you update the strain.
@benny171a @lotzof_gas @activia513 @krtmd @jonathanchait 这是更新菌株的相同配方，这就是流感疫苗自永远以来更新的方式。每次更新毒株时，您都不需要重新测试相同的疫苗。