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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UK researchers estimate that an additional 2, 1, and 6 cases of myocarditis occur per 1 million people in the week after one dose of the AstraZeneca/Oxford, Pfizer/BioNTech, and Moderna COVID-19 vaccines, respectively, while a positive SARS-CoV-2 test was tied to much higher odds of that and other serious heart conditions.
"No one should be in any doubt: there is a tidal wave of Omicron coming," Prime Minister Boris Johnson says.
A review of 32 clinical practice guidelines for severely ill patients shows most were of poor quality.
Only 44% of adults 65 and older had received a booster shot by Thanksgiving, yet 1 in 100 in that age-group have died.
The US Food and Drug Administration (FDA) last week released its Foodborne Outbreak Response Improvement Plan, which is designed to boost the speed, effectiveness, coordination, and communication of events for both the FDA and its investigation partners.
The plan included input from the US Department of Agriculture, the US Centers for Disease Control and Prevention, state health officials, and other stakeholders.
Even with mild cases, a highly transmissible variant could still overwhelm hospitals, the CDC says.
Researchers detail a 9,000% increase in mask litter over 14 months in 11 countries, with hospitals using an extra 89 million masks a month.
The latest UK data show Omicron is outpacing the Delta variant on many fronts.
Programs that reward the newly vaccinated with an entry in a lottery were associated with an increase in COVID-19 vaccinations in most—but not all—US states offering the incentive and may have spurred almost 2 million people to get immunized, according to research published yesterday in JAMA Network Open.
One study shows much lower rates of severe illness, and the other a 90% lower death rate.