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 research team was surprised at how prevalent stigma was, with levels higher in those with a clinical diagnosis.
Protection against Omicron reinfection was lowest, at 60%.
The boosters confer 28% to 56% more protection against symptomatic infections than 2 to 4 doses of the original vaccines, a new study estimates.
Of 35 million who have gotten their booster shots, 16 million were seniors.
Adult US COVID-19 patients who received the antiviral drug Paxlovid within 5 days after diagnosis had a 51% lower hospitalization rate than nonrecipients.
The antiviral drug remdesivir and corticosteroids were tied to better outcomes in COVID-19 patients admitted directly to a hospital ward.
Each dollar invested in New York City COVID-19 vaccine efforts generated $10.19 in savings.
MRI results show significant changes in the brain linked to fatigue, insomnia, anxiety, depression, headaches, and cognitive problems.
"The benefits of vaccination against SARS-CoV-2 in reducing the severity of COVID-19, hospital admission, and deaths far outweigh the risk of developing myocarditis," the authors say.
The US had 155,000 to 466,000 more deaths than peer nations in the second half of 2021 and early 2022.
