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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"We are now starting to see new and concerning trends in cases," CDC Director Rochelle Walensky says.
Recommendations include bolstering worker well-being, reassessing priorities, and admitting when data are lacking.
The hospitals with the highest caseloads had double the risk of COVID-related death.
WHO officials said variant spread could outpace vaccines, even in countries with high vaccine coverage.
The more transmissible variant has led to increased cases in recent weeks in the South and West.
New data presented at the European Association of Urology congress this week show that men with low testosterone who were hospitalized for severe COVID-19 during the first wave of infections in Milan, Italy, were more likely to need intensive care and mechanical ventilation, and they had a sixfold increased risk of death.
The agency prevented 199 drug shortages in 2020, its annual report says.
Study finds that tocilizumab and sarilumab reduce the risk of death and the need for mechanical ventilation.
A lottery-based incentive was not tied to increased vaccination rates in adults.
The federal government will shift to a smaller, community-based COVID vaccination effort.