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 team from South Korea also found high protection against critical illness.
In other global developments, Japan's COVID deaths are at daily record highs, and India shed light on its subvariant picture.
Data reveal no link between COVID-19 vaccination or infection of pregnant women and major congenital anomalies in their babies.
After accounting for the drop in in-person services and the rise in telehealth services, the overall use of mental health services rose during the pandemic for three diagnoses.
The CDC fine tuned its projection for XBB.1.5, which is still spreading quickly, mainly in the northeast.
Among MIS-C patients, 8% had complications affecting 6 or more of the 8 studied organs.
One study looked at BA.5 infection after vaccination, while another examined vaccine effectiveness in children and adolescents.
COVID-infected workers were less likely to work on site than those who had other respiratory diseases, and about 6% of infected employees with telework experience worked on site while sick.
Vaccination rates among US children aged 5 to 17 years varied widely by race as of August 2022.
Concerns are growing about the impact of China's surge and about XBB.1.5, which is quickly gaining dominance in the US.
