I will not get dragged into the viruses exist or do not exist argument as it is an ongoing distraction. But every day- people on these forums claim to have had covid and recovered and I think it is great that people recover, but how do we know they actually had covid? It all comes down to testing. Every clinical scientist I have spoken to has told me the test most people take for covid is nonspecific to covid and can have false positive rates greater than 60%.