director is calling it an opportunistic violence. about two weeks ago, it was 10% being delta and now more recently about 20% of the straensstraen strains here in the u.s. are the delta. reporter: a rapid increase in the potentially more dangerous strain of coronavirus. and a warning. it will be the dominant strain among those regions where the vaccination rate is lower than we would like. reporter: these four states have the lowest vaccination rates for adults in the country. among those 18 and older, less than half have at least one shot. compare that to vermont where nearly 85% have at least one dose and 75% are full will he vaccinated. yet even in areas doing well, the push continues. we are going to keeinnovatin new ways to get people the vaccine, new ways to get it to work for them.
being the delta variant. and now more recently about 20% of our strains here in the united states are the delta variant. reporter: a rapid increase for this more transmissible, potentially more dangerous strain of coronavirus. and a warning. it will be the dominant strain among those areas, those regions of the country where the vaccination rate is lower than we would like. reporter: these four states have the lowest vaccination rates for adults in the country. among those 18 and older, less than half have at least one shot. compare that to vermont, where nearly 85% have at least one dose, and 75% are fully vaccinated. yet even in areas doing well, the push continues. we are going to keep innovating new ways to get people the vaccine, new ways to make it work for them. reporter: more companies requiring shots, a source tells cnn employees and guests entering morgan stanley s new york offices next month must be
decision today? certainly any time anything is nam it is surprising. but the case here was not strong. they started to realize that. and they traded back off things that were too late. and i think it is a good example of this. they said no, the legislation brought that and they didn t have anything to do with that. and he started to pass their laws and they said okay, we ll figure something out. so they talked about the states and the laws. it is worth noting that those legislatures often pass those laws an an idea there in georgia. and the stadium, the deal was the player wills come to georgia
if they move forward. it is a huge week. i know you re a fan of college athletics, what do you make of the high courts decision? when a decision is unanimous, i think it is a flashing red light. they have to get ahead of this. they have been slow to react to this change. if it is educational benefits, if it is the name, image welcome and likeness legislation, the push has to be that it will be on a federal level. to the point it was made again you have states passing different rules on this. there needs to be one set of
situation where expired doses will probably have to be discarded. i don t know what numbers we re looking at right now, but that could certainly happen, and it shouldn t have in a time when there s so much need in many places around the world. so many lessons to learn for sure. god forbid a next time. a lot we ve learned. sanjay, thanks very much. you re going to see dr. fauci next hour here on cnn. he ll join our colleague, dr. erica hill. don t miss it. up next, the push to restart the economy after the pandemic. president biden signed a $1.9 trillion rescue plan to save the economy. critics say pouring all that money into the economy isn t the answer right now. we ll speak to the former chairman of president obama s council of economic advisers next.