The delay, narrowed approval, and extra study steps raise concerns about the status of and potential added requirements for other COVID vaccines.
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 study shows 32% of corpses in a Zambian morgue were positive for COVID-19, but only 10% of the individuals tested positive while alive.
Amid COVID-19 surges, people are scrambling to stockpile over-the-counter pain and fever medications.
The antiviral drug drove down the risk of COVID-19 hospitalization or death by 44% in a highly vaccinated group of older US adults, suggests a large study.
COVID-19 vaccines prevented more than 18.5 million US hospitalizations and 3.2 million deaths, according to new estimates.
Teens were more likely to receive COVID-19 vaccine if they had received HPV, meningitis, or Tdap vaccine.
Close contact with an infected person was the strongest predictor of COVID-19 infection, while young age was tied to a positive rhinovirus test.
A new analysis identifies substantial inter-country differences, with variations by age, sex, and season.
As the holidays approach, the flu surge continues, and tracking shows a fresh spike in COVID-19 markers.
Slightly more than half of COVID-19–related scientific studies posted on medRxiv were published in peer-reviewed journals within 2 years.
Those who reported COVID-19 during wave 1 had elevated symptoms of anxiety and depression at 1, 3, 5, and 13 months follow-up.
