Originally Posted by Seph87

At this point reinfection on a large scale is a statistical impossibility. There are millions of recovered people worldwide - if even 1% of them got reinfected, we would have seen tens of thousands of reinfections by now. Especially in places like NYC or Northern Italy where the prevalence of the virus was very high.

So either these examples we see are some sort of edge case driven by uncommon circumstances (e.g. an immune system disorder) or they are being driven by testing error. Either way it's not something that's worth worrying about when it comes to setting public policy or making large scale decisions.