Overall, 57% of participants had evidence on PET/MRI of inflammation affecting the heart or lungs.
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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As cases surge in intense transmission countries, illness levels are rising in countries that curbed the spread, including many in Europe.
Cases in Africa passed the 1 million mark, as more countries in Europe reported notable spikes in cases.
In other developments, the CDC and the State Department lifted international travel bans and lawmakers remained at odds over the latest COVID-19 relief package.
Patients with confirmed asymptomatic COVID-19 infections shed virus at similar levels to those who are experiencing symptoms, underscoring the importance of public health actions to control the spread of the virus, researchers from South Korea reported yesterday in JAMA Internal Medicine.
A web-based survey of physicians in 23 countries indicates widespread broad-spectrum antibiotic use in COVID-19 patients, an international team of researchers reported today in the Journal of Antimicrobial Chemotherapy.
"All efforts and attacks should be directed against the virus," the authors of a commentary write.
As the world nears the 19 million COVID-19-case milestone, stubbornly brisk activity continues.
Also, FDA Commissioner Stephen Hahn promises safety and efficacy as vaccines are developed.
Moods have deteriorated among US hourly service workers and their children since COVID-19 began.
A small single-center case series published today in Pediatrics describes only mild illness in seven hospitalized infants in New York City with COVID-19 and fever, with none requiring supplemental oxygen, mechanical ventilation, or intensive care.
