Thanks for the extra detail. The reason I'd even heard of it is because my wife was tested for it while pregnant, because she has some African ancestry. It's th

Thanks for the extra detail. The reason I'd even heard of it is because my wife was tested for it while pregnant, because she has some African ancestry. It's the only case I know of where that kind of racial origin affected susceptibility to any kind of condition. Do you know if there are any known patterns for certain groups having different levels of protection against respiratory viruses? I'm trying to phrase this carefully, as I'm genuinely interested, and don't want to come off as some Infowars-style nutjob.