4 ms·

> it'll probably be corrected in the next day or two with more tests. Can take 3 tests at the same time to eliminate error, or does the waiting time between re

• roywiggins 6y ago
  The test is very good at detecting the virus if you have a high viral load. Waiting a day and doing another test means that the low-level infection you missed yesterday has had another day to replicate, making it easier to detect. You're also probably much more infectious when the virus is at levels that are detectible by the antigen tests, so even if you miss it when it's at a low level, as long as you detect it when you get really infectious it can help lower your chances of transmitting it.