@greggwbarnes @benny171a @TrumpUndead @jonathanchait Vaccines are immunity boosters. That's what they do. They vary in effectiveness. Measles or smallpox vaccine on the one hand, very effective, flu shots are shit on the other. Covid vax somewhere in the middle.
@greggwbarnes @benny171a @TrumpUndead @jonathanchait 疫苗是免疫增强剂。他们就是这样做的。它们的有效性各不相同。麻疹或天花疫苗一方面非常有效，另一方面流感疫苗很糟糕。 Covid vax 在中间的某个地方。