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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Follow-up investigations in the US and other nations and by the company have not found the same increase.
ICU care for COVID-19 patients averaged $24,200, compared with $4,700 for general-admission patients.
Compared with uninfected pregnant women, the risk of death was more than 7 times higher, and the risk of ICU care was almost quadruple.
US COVID trends show mixed patterns, with cases and hospitalizations down a bit, but deaths up sharply.
The median time to sustained recovery (at least 3 consecutive symptom-free days) was 12 days in the fluvoxamine group and 13 days in placebo recipients.
New data suggest that transfusion of COVID-19 convalescent plasma improves survival in hospitalized, infected patients who have impaired immune systems.
Of 556 passengers originating from China, 23% tested positive for COVID-19, including 42% on one flight.
Many long-COVID patients have reported facing skepticism when seeking relief at their doctor's office.
Paying people to take a first COVID-19 vaccine dose didn't lower the likelihood of seeking the second or third dose or of other positive health behaviors.
The study assessed stool samples to demonstrate higher SARS-CoV-2 antibodies in infants breastfeeding from vaccinated moms.
