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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There was a slightly higher risk for inflammatory bowel disease and blistering skin disorders only in hospitalized COVID-19 patients amid Omicron.
Early-stage diagnoses especially were lagging for lung and cervical cancers.
COVID-19 participants most often reported fatigue, muscle aches, headache, and loss of taste and/or smell, consistent with the more extensive systemic COVID-19 effects.
People with disabilities are also more likely to have severe COVID-19, face treatment refusals, and be hospitalized, the researchers say.
Though most indicators showed downward trends, deaths were up compared to the previous week.
Two factors were tied to increased risk of long COVID through 18 months: age 12 years or older and being infected with the original or Alpha strain.
Higher-risk activities included carpooling with relatives and attending concerts.
Seven percent of patients were diagnosed as having long COVID.
For COVID-19 diagnosis, wearables were accurate 88% of the time.
Participants with a significantly higher likelihood of receiving a COVID-19 vaccine were older and were previously vaccinated against the flu.