When someone suggested people with AB negative blood are immune to COVID-19, I laughed. Then I learned that more and more AB negatives are believing it. The last study I have posted actually indicates blood type AB being at an increased risk for COVID-19.
If you are addicted to feeling special, it will be easy to lie to you. I have looked at the original claim and there was no study attached, no explanation, just someone making the claim.
If you read gossip, the first thing to do is verify it on your own. If you cannot verify it, ignore it if the claim doesn’t include proof. Especially do not share the claim on Facebook, because now you are part of the problem leading other gullible people down the same wrong road.