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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The FDA says 60 million doses of the one-shot Johnson & Johnson vaccine cannot be used because of possible contamination.
Preventive anticoagulation dosing for blood clots in the veins was tied to lower 60-day death rates.
A surveillance study of US children during the first wave of the pandemic found that multisystem inflammatory syndrome in children (MIS-C) was a rare complication associated with SARS-CoV-2 infection, but incidence was significantly higher in non-White racial and ethnic groups, US researchers reported yesterday in JAMA Network Open.
For every 20 percentage points of vaccinated people, positive COVID-19 tests in unvaccinated children halved.
The FDA has granted an extension on the shelf life of the Johnson & Johnson vaccine, to 4.5 months.
Elsewhere, European officials say only 30% of the population has received 1 vaccine dose.
High doses of intravenous immunoglobulin (IVIG) in conjunction with an anticoagulant were associated with resolved vaccine-induced immune thrombotic thrombocytopenia (VITT) in three patients, according to a report yesterday in the New England Journal of Medicine.
VITT occurs when antibodies attack protein factor 4 (PF4), leading to blood clumping and clots.
The risk of severe COVID-19 or death is far greater than any posed by the vaccine, a study author says.
Also, President Biden is expected to announce that the US plans to donate 500 million vaccine doses globally.
PAHO's head notes two worlds: "One quickly returning to normal, and another where recovery remains a distant future."
