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.
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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Also, Moderna announces promising immune response and safety data for its vaccine in kids ages 6 to 11.
The news comes as Russia reports a daily high in cases and Germany sees rising infections.
First responders' risk for COVID-19 infection is about 60% more than other essential workers, including healthcare workers (HCWs), according to a study published late last week in JAMA Health Forum.
Also, FDA documents show the Pfizer vaccine is 91% effective in younger kids.
Cognitive impairment patterns occurred in relatively young patients and echoed findings seen in those who recovered from other viral illnesses.
Rises in the UK have been a bellwether for emerging patterns in the United States.
Two recent studies in Pediatrics look at risk factors for severe pediatric COVID-19 and COVID deaths in those younger than 21 years of age.
Many people who received Moderna and all who got J&J vaccines should receive a booster, advisers say.
One study shows a 30% lower vaccination rate, and another higher rates of severe disease and death.
An estimated 80,000 to 180,000 healthcare workers died from COVID-19 in the pandemic's first 17 months.
