The head of the U.S. Centers for Disease Control and Prevention said on Feb. 26 that a recent decline in COVID-19 cases may be stalling, a development she described as concerning while urging that safeguards to fight the virus remain in place.

The head of the U.S. Centers for Disease Control and Prevention said on Feb. 14 it is “absolutely” too soon to lift mask mandates, citing daily Covid-19 case numbers that despite recent declines remain more than double the levels seen the summer of 2020.

The United States lost more than 23,000 lives to Covid-19 during the week ended Jan. 17, setting a record for the third week in a row, though the number of new infections and the amount of patients in hospitals both fell from the previous seven days.

The United States recorded 10,000 coronavirus deaths and more than 1.1 million new cases for the week ended Nov. 29, although state and health officials said the Thanksgiving holiday likely caused numbers to be under-reported.

Several U.S. governors, from the coastal states of New Jersey and California to the heartland of Iowa and Ohio, acted to restrict gatherings and boost face-coverings in confronting a coronavirus surge they warned is out of control.

The United States recorded more than 1 million new Covid-19 cases in the past week as new infections rose in every state except for Hawaii, according to a Reuters analysis of state and county reports.

Chicago’s mayor issued a month-long stay-at-home advisory, and Detroit’s public schools called a halt to in-person instruction to curb the spread of the coronavirus as more than a dozen U.S. states reported a doubling of new Covid-19 cases in the last two weeks.

The coronavirus pandemic raged across the United States as the country elected a new president, with the daily number of new infections hitting record highs for four straight days.

The United States set a one-day record for new coronavirus cases with at least 102,591 new infections and as hospitals in several states reported a rising tide of patients, according to a Reuters tally.

Premiums for an average health insurance plan under the Affordable Care Act dropped by 2% for the 2021 coverage year, according to a report released by the Trump administration, which is seeking to invalidate the 2010 healthcare law.