@Lujan588 @midnucas @video4me @wsbgnl Probably not. Vaccination alone provides minimal immunity against infection by any Omicron, so the previous ones are evasive "enough". BA5 is going to spread well in places that relied on mass infection with BA1 to stop BA1. China didn't do that.
@Lujan588@midnucas@video4me@wsbgl可能不是。疫苗本身对任何Omicron感染的免疫力都很低，因此之前的疫苗“足够”回避。BA5将在依赖大规模感染BA1来阻止BA1的地方很好地传播。中国没有这样做。