Given that the poster said norovirus immunity lasts from 6-24 months, having been infected before the vaccine wouldn't guarantee you're safe. And while sure th

Given that the poster said norovirus immunity lasts from 6-24 months, having been infected before the vaccine wouldn't guarantee you're safe. And while sure they could push back your vaccine requirement a few months, that'd require a fair amount of additional overhead and add an additional risk of having gotten a false diagnosis.