Is there any evidence of natural immunity to Covid?

No.13973395 ViewReplyOriginalReport
Since the outbreak, I've been exposed countless time to people who caught it, yet all my test came out as negative. I even had for a period of people, people living under my roof that were infected by it, and wouldn't bother wear a mask, yet I never got infected. At my work, most people are vaccined, but some are regularly getting Covid, dropping like flies, and here I am, barely protecting myself with the mask, only putting it when someone gets close to me otherwise I live my face mask off, even when I walk through the company's corridors, and I'm still not infected.

Am I immune to it?