- There was a lot of excitement about the FDA approving a rapid (15 minute, $5) SARS-CoV-2 test.
- This is an interesting analysis of when such a test would be useful and when not?
- In short – if the true infection rate of the population you are testing is very low (<1%) it won’t be useful.
- Which means using such a test on cruise ships, as some have suggested, won’t work.
