tests were negative a few days later they have come down, tested positive in the case several people this weekend severe like flu symptoms. can omicron invade the rapid test can there be false positives or false negatives? the false negative is really what we see in the presymptomatic phase. that is before you have symptoms the rate of a false negative can be as low as 50%. so if you are very concerned you might been exposed to moving to test twice if using the rapid antigen test you buy at the pharmacy. they have been to gatherings or people are vaccinated they beat triple fax with the booster and they test negative and think they are okay. but you are saying that may not necessarily be so? that is right we have to move to a selective testing strategy in the u.s. we cannot universally be testing everybody frequently who were not going to make any changes to their behavior who are around me and say people who are not going to come down