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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Presymptomatic and asymptomatic COVID-19 cases contributed at least 50% of transmissions during New York City's first COVID surge, according to a study published yesterday in Proceedings of the National Academy of Sciences.
New CDC data show the fit of face masks may significantly reduce COVID-19 spread.
Also, the WHO says overall cases and deaths are falling, but more nations are reporting variant viruses.
Hospitalized adults with COVID-19 are 3.5 times more likely to die than adults with the flu, reports a study today in CMAJ. The study also found that those with COVID were 1.5 times more likely to be admitted to the intensive care unit (ICU) and have 1.5 times longer hospital stays.
Nursing homes with more than 40% non-white residents had COVID-19 death rates 3.3 times higher.
"Learn the lesson of Tuskegee and do everything in our power to ensure African Americans get the vaccine."
Experts say virus introduction through an intermediary host species is the most likely of 4 scenarios they presented.
Few preschoolers attending 22 daycare centers in France last spring had SARS-CoV-2 antibodies in their blood.
In another sign that a former hot spot is recovering, New York City restaurants can soon resume indoor dining.
A study today in mBio offers support to continue breastfeeding infants even when mothers have mild to moderate COVID-19 infections. The study showed breastmilk samples did not contain SARS-CoV-2 (the virus that causes COVID-19) RNA, but the authors suggest risk of transmission via breast skin to baby should be evaluated.
