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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Few US patients sought in-person care in the first 2 months of the pandemic.
Greece joins a host of other European nations in ordering a second round of lockdowns.
Researchers from the Centers for Disease Control and Prevention (CDC) and the Chicago area analyzed movement networks during a COVID-19 outbreak at the Cook County Jail in Chicago, finding that medical isolation and contact interventions were effective at reducing transmission.
All 41 patients had extensive lung damage, while 36 had massive abnormal clotting.
US hospitalizations are rising, and facilities are converting wards into ICUs and seeking more staff.
A Duke University study yesterday in Clinical Infectious Diseases found a 77% infection rate in children who were close contacts of a COVID-19 case, providing evidence for efficient viral transmission in children. Hispanic ethnicity and having a SARS-CoV-2–infected sibling were risk factors, but asthma was associated with reduced risk.
Pregnant women had 3 times the risk of ICU care and mechanical ventilation.
White House coronavirus task force head Deborah Birx warns the country is entering its most dangerous period.
In a case study of COVID-19 contact tracing during San Francisco's shelter-in-place period, of the 1,124 contacts traced, 1,017 (83.8%) were successfully notified, 457 (37.6%) were tested, and 120 (9.9%) were newly diagnosed.
A hypothesis that says mask wearing could reduce the infectious dose is dangerous, some experts say.
