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 president also unveiled a new incentive plan and asked school districts to make more vaccine available for kids 12 and older.
Vaccine effectiveness (VE) for the Pfizer/BioNTech COVID-19 vaccine against COVID-19 was 91% up to 6 months after the second dose, according to a non–peer-reviewed study published yesterday on the preprint server medRxiv.
Most cases were mild to moderate, but 1 in 5 patients had long COVID symptoms.
Meanwhile, Africa's vaccine supply show improvements, and Delta-driven surges increase in parts of Asia and the Middle East.
The studies, one on mental health in general and one on mood disorders, both found a higher death risk.
The WHO projects that, at the current pace, global cases could reach 200 million in the next 2 weeks.
The CDC says it's up to state and local officials to determine appropriate mask use, based on metrics.
COVID-19 reduced lifespan by up to 9 years in parts of the United States, per a new "mean unfulfilled lifespan" (MUL) metric, according to a study published yesterday in PLOS One.
The MUL is a new indicator of the impact of mortality shocks, such as the novel coronavirus or other natural disaster, on peoples' lifespan.
All schoolchildren, staff, and teachers should wear masks when indoors this fall, the agency says.
Despite the increased case count, researchers say herd immunity is still far off.
