2 ms·Someone would be infected and contagious for awhile before developing antibodies though.by philwelch 7y agoSomeone would be infected and contagious for awhile before developing antibodies though.refurb 7y agoTrue, but that's unavoidable with every test. Even PCR doesn't work until you're body has produced enough viruses to be detected.philwelch 7y agoYeah, I think there's value in minimizing the period that someone is contagious but still tests negative though.