Warming weather, cautious behavior and the fact that many Americans have already been infected with Covid are helping drive cases down, Dr. Scott Gottlieb said.
www.cnbc.com
However, the percentage of Americans who have some immunity against coronavirus is higher than the vaccination rates, Gottlieb said, estimating that at least one-third of the population has been infected. The U.S. has had around 33 million total confirmed Covid cases, but Gottlieb has repeatedly said the official tally is an undercount.