I believe that you can catch the “Classic version” (Original or delta variant), and then STILL get the Omicron variant. I kinda doubt you could get it a 3rd time. (At least from what I’ve read recently).
You can catch colds and or the flu more than once....I expect the same for covid regardless of which side of the so called variants you get. It’s still covid and you’re still sick.
In between March 2020 and January 6th when my symptoms first began, I’ve had absolutely no colds or viruses, even tho I spent a week At Disneyworld in August 2020 and 5 days in Vegas in August 2021.
I should note that I’ve been taking mega vitamins and supplements like zinc, quercetin, NAC, turmeric, vitamins C, D, and K for over a year, and I’ve taken 2 ivermectin 12 mg tabs a day since Friday.