let's get over to david weston who is talking to dr. anthony fauci. this is bloomberg. david: for our bloomberg television and radio audience wide, and our special guest dr. anthony fouts he is with us, director of the national institute of allergy and infectious diseases. thank you for being back with us. what are the prospects for another wave of this covid-19, whether it be some other sub variant, given the level of immunity we believe we have in the country today? >>>> to accurately predict for the following reason. you are correct that when you combine the immunity that many people have following infection with the immunity that people have been vaccinated and hopefully boost it have, there is a significant amount of background immunity. we know that the omicron da-2 - omicron is highly transmissible and the da-2 has a transmission advantage. if you look at what happens in other countries, we usually follow their pattern. take the u.k. as an example. they have ba2 and they've done to other things. they have the virus we have in our country, about 75% are ba@. they'v