people to check no fever this 72 hours, no runny nose. and for those individuals five days of isolation is enough. we were not telling people to go to work sick. this is people who were asymptomatic or mild infection. the best data that we have suggests that this infection comes very quickly, has a very short what we call incubation period, and people remain infectious for shorter periods of time. so this is a safe period of isolation, especially for people who are vaccinated, asymptomatic or mildly ill, and that's the recommendation in new york state. >> in new york state, the isolation guidelines specifies it's for the fully vaccinated in these industries. the cdc guidelines that were just recently updated, it doesn't different siate between the vaccinated or unvaccinated. do you agree with the guidelines in general? do you think that the vaccinated should be singled out as new