"So the concern is basically at this level of transmission, if you're not vaccinated, you're going to get delta," Dearth said. "You're going to get COVID, and if you look at the number of people we have in this country who are still unvaccinated, that's where you're potentially going to see the surges on hospital systems again." To find a place where you can get the vaccine near you, visit ourshot.in.gov, call 211 or visit most pharmacies. In the USA, more than 51.7% of new coronavirus cases were linked to the delta variant over the two weeks ending July 3, according to CDC estimates.