Sewer sampling, the authors say, could be expanded to track other infectious diseases such as H5N1 avian flu or mpox or to detect unexpected pathogens.
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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Higher death and critical care rates are likely to strain hospitals, researchers say.
All told, 85 countries have reported the Delta variant, and a number of nations are battling rises in COVID-19 cases.
During the first US wave of the COVID-19 pandemic, there may have been almost 17 million undiagnosed COVID-19 infections in addition to the known 3 million cases, or about five times more than officially reported, according to a study in Science Translational Medicine yesterday.
Family members report problems with bonding with the ICU team, understanding their loved ones' condition, and managing their feelings in isolation.
WHO officials warn that a steady global decline is slowing, with surges in all global regions.
"The Delta variant is the biggest threat in the United States to eliminating COVID-19," advisor Anthony Fauci warns.
Non-White children may receive less COVID-19 testing and experience higher COVID-19 infections, COVID-19 severity, and hospitalization duration, according to a study yesterday in JAMA Pediatrics.
Two CDC studies today spotlight lower COVID-19 vaccination rates in young adults compared with older Americans.
One study finds a lower risk of cardiovascular dysfunction, and the other shows no lessening in disease severity.
The production hub is designed to boost vaccine supplies in the region for current and future outbreaks.
