3 ms·

So you think they should use some lower Ct number for which it would be possible to show that eg 99.5% of people who are over it (i.e. have lower viral load) do

by yread 6y ago

So you think they should use some lower Ct number for which it would be possible to show that eg 99.5% of people who are over it (i.e. have lower viral load) don't infect anyone? Interesting. I've read that most of the false negative for a PCR test actually come from sample collection (makes sense, PCR is super reliable) so it could be that you would miss people with high viral load where the sample was just not taken in a perfect way. Especially early in the infection it could be quite localized.

nanis 6y ago
> So you think they should use some lower Ct number Everyone should use the same number in all tests. From what I understand, about 20 is a reasonable number which might still result in positives up to a month post-infection. I consider having a standard more important that the specific number chosen. It seems when people go to > 30 it is in a quest to ensure a positive test result.