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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Surges in Europe drove record highs in France and Italy, with Australia also reporting record daily cases.
A retrospective study of a large cohort of US pregnancies during the COVID-19 pandemic found that infection with SARS-CoV-2 was associated with increased risks for poor pregnancy outcomes, an international team of researchers reported today in the Journal of Infectious Diseases.
Data from South Africa and the UK show that illnesses may be less severe with the new variant.
A 30-pill regimen reduced the risk of hospitalization or death by 88%, company data show.
Metabolic syndrome, a chronic low-grade inflammatory state, was tied to acute respiratory distress.
People unvaccinated against COVID-19 were at up to four times the risk of infection, finds a JAMA Network Open study based on tests taken at US retail pharmacies, most of them after the emergence of the Delta (B1617.2) variant.
Biden has instructed the government to distribute 500 million free at-home tests.
The authors say use of poorer data is understandable early in a pandemic, but standards should be raised later.
WHO director says there's no doubt socializing over the holidays will lead to more cases, overwhelmed healthcare systems, and deaths.
A study of 107 French teens hospitalized with the COVID-19–related multisystem inflammatory syndrome in children (MIS-C) shows that none had been fully vaccinated against SARS-CoV-2, and only 7 had received one dose.