The 10 new flu-related deaths in children bring the season's total to 226, the most since 2009-10.
Plaque growth can lead to a higher risk of heart attack, stroke, and other life-threatening cardiovascular events for as long as 1 year.
Post-exertional malaise, or exercise intolerance, was seen in 36% of those with long COVID.
Get weekly COVD-19 updates in your inbox.
Catch the latest episode!
Top COVID FAQs
By CIDRAP & other experts
Read all 7 reports
Fitbit tracking and the participant survey found that lower step counts persisted, even after COVID restrictions eased.
The newly signed law requires declassification within the next 90 days and focuses on the Wuhan Institute of Virology.
The WHO said Chinese researchers temporarily posted the market environmental sample sequences in advance of publishing their findings in Nature.
About 4,800 lives could have been saved during the winter 2021-22 Omicron wave if just 5% of COVID-19 patients had taken the antiviral drug, modelers estimate.
Teens who slept less than 7 hours per school night were 17% more likely to report difficulty with schoolwork than those who slept 8 to 10 hours.
Scientists who examined the genetic sequences say they bolster evidence of a spillover from a raccoon dog or other mammal sold at the market.
The pregnancy-related death rate shot up faster in 2021 than in 2020, nearly doubling from rates in 2019 and hitting racial minority women hard.
Black, Latino, and Native American children account for 65% of those who have lost a primary caregiver to COVID-19.
Paxlovid's estimated effectiveness in preventing hospitalization or death was 53.6%, rising to 89.6% when it was taken on the day of the COVID-19 test.
The WHO's new variant tracking system better distinguishes Omicron sublineages and outlines when new SARS-CoV-2 changes pose major public health threats.
