The University of Washington’s own highly influential model projects that the number of daily reported cases in the U.S. will crest at 1.2 million by Jan. 19 and will then fall sharply “simply because everybody who could be infected will be infected,” according to Mokdad.

In fact, he said, by the university’s complex calculations, the true number of new daily infections in the U.S. — an estimate that includes people who were never tested — has already peaked, hitting 6 million on Jan. 6.

In Britain, meanwhile, new COVID-19 cases dropped to about 140,000 a day in the last week, after skyrocketing to more than 200,000 a day earlier this month, according to government data.

Numbers from the U.K.’s National Health Service this week show coronavirus hospital admissions for adults have begun to fall, with infections dropping in all age groups.