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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One study finds that 2 vaccinated parents are better than 1 at protecting kids.
Also, people are concerned about the impact of Omicron on the economy and on hospitals.
A third COVID-19 vaccine dose increased vaccine effectiveness (VE) against hospitalization from 82% to 97% among adults with healthy immune systems and from 69% to 88% among those with impaired immunity, according to a study today in Morbidity and Mortality Weekly Report (MMWR).
Both studies show promise for boosters against Omicron, with one focusing on dose interval.
Also, the ECDC says the BA.2 subvariant is now dominant in Denmark and is rising elsewhere.
US hospital data show 150,000 COVID-19 patients being treated, down from a record 160,000.
Among 457 adult participants in an ongoing phase 1/2 clinical trial who completed primary COVID-19 vaccination with the Moderna, Johnson & Johnson (J&J), or Pfizer/BioNTech vaccines, a booster dose with either the same (homologous) or a different brand (heterologous) induced an immune response and was safe.
Overall, patients had only modest benefit, but some subgroups fared better.
The US has donated more to COVAX than any other nation, with the latest shipments bound for Pakistan and Bangladesh.
Officials confirmed more than 21 million new global cases last week, the highest weekly total ever.
