garlichead
Über Member
Every time we have a new variant we generally see mutations taking place which effects future immunity. We have had the Apha, Betta, Gamma, Delta and now Omicron. Natural immunity for any one of these does not necessarily mean you'll be 100% immune to any future variant. Reinfection was a given, but like I said that has never been explained properly from the very beginning, well at least In Canada or the USA from what I've seen.