The announcement comes just 2 days after Kennedy removed all 17 members of the Centers for Disease Control and Prevention's vaccine advisory committee.
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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Emphasizing shared clinical decision-making with providers, the CDC now says healthy children ages 6 to 17 "may" receive COVID vaccination if a parent or guardian wants it.
Neutralizing antibodies tested 90 days after infection were greater in participants who had been vaccinated before their variant infections than in those who had been vaccine-naive.
Preschool-aged children were more likely to have a dry cough and daytime tiredness or low energy.
The increase in activity is seen in the Western Pacific, Southeast Asia, and Eastern Mediterranean regions.
Yet less than one third of patients received antiviral drugs, perhaps owing to provider concerns about drug-related adverse effects or drug-drug interactions.
Experts say illnesses don't seem more severe and more studies are needed to further assess the risk of antibody escape.
This is the first H5N1 human case reported in mainland China since July 2024.
The move comes just 1 week after the FDA announced that the vaccine would now be offered only to adults 65 years and older or those with underlying conditions.
The agency told vaccine makers that COVID-19 vaccines used in the US starting in fall 2025 should be based on JN.1 lineage strains, preferably the LP.8.1 strain.
The United States has been in a "protracted health crisis" for decades, the researchers say.
