@AnnMarieReimers @DCDoc33 @WalkerBragman No infection, no long covid. Avoiding infection is difficult and in some ways costly, but not impossible. Perhaps not entirely forever, but it can definitely be slowed down and "one and done" is not a thing. Getting infected one time is probably less harmful than 20 times.
@AnnMarieReimers@DCDoc33@WalkerBragman无感染，无新冠病毒。避免感染是困难的，在某些方面代价高昂，但并非不可能。也许不完全是永远的，但它肯定可以放缓，而且“一个完成”不是一件事。一次感染可能比20次危害小。