Corona virus, China major city lockdowns, etc.

[Shaggy Hiker]

I think I may have read somewhere that we don't develop an immunity to it, just like a common cold/flu, we could get it again. I may be wrong tho.

The issue with the common cold and the flu is that they aren't one thing. The flu is a class of viruses, with different ones each year, which is why flu shots are different every year, since the target keeps moving. The common cold is generally the same, though it is even more diverse. In this case, it's one virus. It will mutate, and get around most immunities, eventually, but you might be safe for years. It all depends on whether or not the mutation is such that our immune system no longer recognizes it as bad.