Originally Posted by
fransknorge
I'm aware t-cells are hard to detect, which is why I'm refering to antibodies which can be easily tested.
Originally Posted by
LondonElite
There are many reports of people getting Covid a second time. I can't see this working.
There are few such reports. It happens but it's very rare. I'm not disputing antibodies can last fairly shortly, but I'm refering to a situation when the person still has them. And again, some countries do accept antibody tests for entry.