The United States has been in a "protracted health crisis" for decades, the researchers say.
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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People with disabilities are also more likely to have severe COVID-19, face treatment refusals, and be hospitalized, the researchers say.
Though most indicators showed downward trends, deaths were up compared to the previous week.
Two factors were tied to increased risk of long COVID through 18 months: age 12 years or older and being infected with the original or Alpha strain.
Higher-risk activities included carpooling with relatives and attending concerts.
Seven percent of patients were diagnosed as having long COVID.
For COVID-19 diagnosis, wearables were accurate 88% of the time.
Participants with a significantly higher likelihood of receiving a COVID-19 vaccine were older and were previously vaccinated against the flu.
Researchers find that high-income countries saw the most significant increase in gender mortality gaps.
A commentator likened the drug's effects to those of a vaccine against the indirect effects of a pathogen, without waning over time.
The authorization of Novavax's updated monovalent vaccine gives consumers a protein-based immunization option.
