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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Many people who received Moderna and all who got J&J vaccines should receive a booster, advisers say.
One study shows a 30% lower vaccination rate, and another higher rates of severe disease and death.
An estimated 80,000 to 180,000 healthcare workers died from COVID-19 in the pandemic's first 17 months.
COVID-19 vaccination does not increase the risk of miscarriage during the first trimester of pregnancy, according to a Norwegian case-control study that involved 13,956 women, 5.5% of whom were vaccinated against the virus. The results were published yesterday as a letter to the editor in the New England Journal of Medicine.
Two large studies show very high protection against the more transmissible variant.
Studies look at COVID-19 immune responses in pregnant women.
For the third week in a row, illness numbers in Europe rose, with a 7% jump last week.
Officials are preparing to vaccinate up to 28 million US children aged 5 to 11 as soon as approval is granted.
COVID-19 outpatients were more likely to have more respiratory symptoms if they were overweight or obese, according to a study published yesterday in Influenza and Other Respiratory Viruses.
The FDA may approve "mix and match" boosters, meaning different ones from the vaccine originally received.
