Uncontrolled Variants News Today

Herd immunity still months away. >> lets say in may vaccines are going to be widely available to almost anybody, may, june, but it may take until june, july and august to finally get everyone vaccinated. >> reporter: the u.s. reports its lowest number of cases since october, but experts warn a new wave could be coming, fueled by uncontrolled variants. more than 1,100 cases of those reported across at least 42 states. >> thats something that i think everybody has to be even more cautious about. a...