The government’s top infectious-disease expert, Dr. Anthony Fauci, said the improvement in numbers around the country appears to be the result of “natural peaking and then plateauing” after a holiday surge, rather than an effect of the rollout of vaccines that began in mid-December.
Deaths are running at an average of just under 3,100 a day, down from more than 3,350 less than two weeks ago. New cases are averaging about 170,000 a day after peaking at almost 250,000 on 11 January.
The number of Covid-19 patients in the hospital in the US has fallen to about 110,000 from a high of 132,000 on 7 January.
States that have been hot spots in recent weeks such as California and Arizona have shown similar improvements during the same period.
On Monday, California lifted regional stay-at-home orders in favor of county-by-county restrictions and ended a 10pm curfew.
Elsewhere, Minnesota school districts have begun bringing elementary students back for in-person learning.
Chicago’s school system, the nation’s third-largest district, had hoped to bring teachers back Monday to prepare for students to return next month, but the teachers union has refused.
“I don’t think the dynamics of what we’re seeing now with the plateauing is significantly influenced yet — it will be soon — but yet by the vaccine. I just think it’s the natural course of plateauing,” Fauci told NBC’s “Today.”
Nationwide, about 18 million people, or less than 6% of the US.population, have received at least one dose of vaccine, including about 3 million who have gotten the second shot, according to the Centers for Disease Control and Prevention.