Overall, 57% of participants had evidence on PET/MRI of inflammation affecting the heart or lungs.
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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The authors said a range of factors--biological, psychological, or social--might trigger and maintain long COVID symptoms.
The variants predate the use of the drugs, appeared independently in multiple world regions, and are capable of spreading.
Babies born to moms who had COVID had lower BMIs at first, but weight rose steeply through infancy, a possible harbinger of problems in later life.
India's cases are at the highest level in 6 months, as the US experiences a politically charged unwinding of its COVID health emergencies.
Nearly two-thirds of patients hospitalized with flu, RSV, or COVID-19 received antibiotics, but they had a higher risk of death than those who didn't.
Though COVID deaths drove part of the widening gap, other factors such as unintentional injuries involving opioids and alcohol also played a role.
For the first time, the recommendations factor in cost-effectiveness for vaccinating those at lower risk, partly due to concerns about maintaining coverage of crucial routine vaccines such as measles.
Recently approved for emergency use, the first combo at-home test for COVID-19 also marks the first self-test for flu.
The latest evidence suggests clinical expertise, rather than a fixed time interval, should guide decisions on proceeding with surgery in recovered COVID patients.
The most common symptoms on day 10 were shortness of breath (38.7%), cough (31.8%), insomnia (31.5%), and fatigue (29.3%).
