[bjoli]

So, another anecdote: I have COVID right now. I have had a bunch of self tests at home, and have tested myself every single time I have had any kind of cold or fever.

Despite me getting on a crammed bus every morning and afternoon to go working in the same room as about 80 other people 4 days a week I didn't get COVID (that I know of) until now.

Sometimes we are just lucky. Maybe the vaccine worked better-than-average for us. Maybe the route of infection works less well for us. Maybe we had it without noticing it at all

[EricE]

PCR tests also love to give false positives...

[BobAliceInATree]

Maybe, but it's only really an issue if there's low-prevalence of covid at the moment of testing (bayesian probability).

But it's also easy to test multiple times, and often enough the symptoms will confirm it.

[bjoli]

I am pretty sure it is the opposite. I used antigen tests which are less reliable.

I did not mean to confirm the parent, but give a version that is similar but probably just chance.

[croes]

Rarely, false negatives are way more likely than false positives.