The risk of long COVID was two to three times higher after the initial infection (14.8%) than after first (5.8%) or second (5.3%) reinfections.
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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Mental health patients with a recent prescription for an SSRI had an almost 40% less likelihood of testing COVID-19-positive.
Adult COVID-19 patients exposed to air pollution spent an average of 4 extra days in the hospital, further overwhelming health systems.
Eating disorders in girls 13 to 16 years old rose 42% in the first 2 years of COVID-19, and self-harm was up 38%.
The study adds to the broader understanding of vaccine protection in children, and suggests vaccines are useful even in the face of naturally acquired immunity.
The FDA is asking manufacturers to develop single-strain vaccines that target the Omicron XBB.1.5 subvariant.
Health workers describe a disconnect between official messaging and their own experience, waning morale, and having to allocate scarce resources.
Overall, undergraduates showed more signs of distress and anxiety than even UK healthcare workers.
Multiple biomarkers show no change in the ovaries' ability to produce eggs capable of fertilization that results in a successful pregnancy.
Amid reduced testing and case reporting, hospitalization and death trends may be more reliable COVID activity markers.
There were statistically significant rises in pre-pregnancy body-mass index and obesity rates among women in year 1 and 2 of the pandemic.
