The United States has been in a "protracted health crisis" for decades, the researchers say.
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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"Control measures must be lifted slowly and with control. It cannot happen all at once."
Six East Coast and three West Coast governors band together to develop regional plans.
The authors say the findings "confirm that SARS-CoV-2 aerosol exposure poses risks."
Though COVID-19 activity has transformed holiday celebrations, governors of at last 6 states and New Zealand's prime minister declare the Easter bunny an essential worker.
Historian John Barry shares what's the same, what's different, and talks about good COVID-19 leadership.
Also, the CDC details geographic differences, and experts estimate the vast needs for protective equipment.
The head of the WHO says lifting restrictions too quickly could lead to a deadly resurgence.
Global cases reach 1,579,690, including 94,567 deaths.
Homemade masks may capture respiratory droplets, but no evidence shows they filter out aerosols, a new report says.
Washington, DC, Baltimore, and Philadelphia will likely be the next US hot spots, officials say.