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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The delay, narrowed approval, and extra study steps raise concerns about the status of and potential added requirements for other COVID vaccines.
When CDC advisers widened their recommendation in 2023, most members were swayed by data, including those for long COVID, showing that no group is at low risk for the virus.
Wastewater levels for COVID-19 are low, while for influenza A and RSV they are very low.
Current vaccine strains show high neutralization against the latest variants, but the LP.8.1 antigen may provide similar or moderately higher cross-reactive antibody response.
Self‐reported physical activity was lower among those with long COVID.
Participants with ongoing long-COVID symptoms were more likely to report any productivity loss in the preceding 3 months than those without ongoing long-COVID symptoms.
Although the risk was greater with moderate-to-severe infections, even mild cases were linked to more than double the risk.
Sewer sampling, the authors say, could be expanded to track other infectious diseases such as H5N1 avian flu or mpox or to detect unexpected pathogens.
The risk of long COVID was two to three times higher after the initial infection (14.8%) than after first (5.8%) or second (5.3%) reinfections.
Overall, the hazard ratio for in-hospital mortality at 28 days was 0.73.
