The problem with PCR test controls is that they would only catch an infection around the time you get infected, whereas antibody tests would catch infections further back in time.
I don’t see the evidence that belief in having had covid is a better predictor of having had covid than is a serology test.
The problem with PCR test controls is that they would only catch an infection around the time you get infected, whereas antibody tests would catch infections further back in time.
I don’t see the evidence that belief in having had covid is a better predictor of having had covid than is a serology test.