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.
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Also, Iran's third surge hits record levels and Sweden orders some restrictions.
About 52% of 128 COVID patients reported fatigue 10 weeks later, regardless of disease seriousness.
Separate reports detail shortages of rheumatoid disease treatments and of drugs in France.
A PLOS One study yesterday showed that behavioral responses to the pandemic differ by age and change over time, with older people more likely to practice pandemic-mitigating behaviors—hygiene, quarantining, and physical distancing—and all age-groups demonstrating greater likelihood of engaging in risky behavior over time.
The 7-day average of daily US cases is 108,694, a 37% increase from the week before.
A study yesterday found that employment-related exposure to SARS-CoV-2, the virus that causes COVID-19, endangers workers and their household members.
The death rate in less-crowded homes was less than half that of homes with shared bedrooms and bathrooms.
Also, preliminary phase 3 data on Pfizer's COVID-19 vaccine candidate show 90% effectiveness.
Some people who were never infected with SARS-CoV-2 appear to have cross-reactive antibodies against it.
The Joe Biden-Kamala Harris transition website says it will immediately restore America's relationship with the World Health Organization.
