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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The syndrome is different from Kawasaki disease and toxic shock syndrome.
Anywhere from 6% to 40% of the population may be infected but not have symptoms, a WHO officials says.
Also, an analysis of a Navy ship outbreak highlights few symptoms in young adults.
Black or other ethnic minority women in the United Kingdom make up 56% of all documented hospitalized cases of COVID-19 in pregnancy, according to a new study published in The BMJ.
Yesterday, 75% of cases were in 10 nations, mostly in the Americas and South Asia.
New data show that 600 frontline US health workers have died from COVID-19.
Keeping infected moms in rooms separate from their babies is one approach, but with breast milk options.
Twelve cases have now been reported in a new Ebola outbreak in northwestern Democratic Republic of the Congo (DRC), up from eight last week. The World Health Organization (WHO) confirmed in an email today that there are 12 cases in Equateur province, which includes 9 confirmed and 3 probable infections. Five deaths have been reported.
"I do think there is a potential, unfortunately, for this to be a seeding event," says CDC Director Redfield.
Two studies in France highlight the multisystem inflammatory disorder.