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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Paxlovid's estimated effectiveness in preventing hospitalization or death was 53.6%, rising to 89.6% when it was taken on the day of the COVID-19 test.
The WHO's new variant tracking system better distinguishes Omicron sublineages and outlines when new SARS-CoV-2 changes pose major public health threats.
Fourth-dose vaccine effectiveness among patients aged 65 years or older was 66% at 7 to 59 days and 57% at a median of 88 days.
"Currently available data show that vaccination remains the best defense against severe disease, hospitalization, and death caused by COVID-19 across all age groups."
Negative infant mood and behavior has been associated with behavioral, cognitive, and developmental problems across the lifespan.
Pandemic-related family financial struggles were tied to increases of 205% in perceived stress and 112% in sadness.
Protection of 4 doses of COVID vaccine against BA.5 infection among COVID-naïve participants was 16.1%, while it was 89.5% and 94.3% among those previously infected with BA.1 and BA.2, respectively.
Venous thromboembolism occurred in 292 of 398,530 patients (0.1%) over the follow-up period, for an overall rate of 0.26 per 100 person-years.
Fever and cough were more common with the Delta and Omicron variants, but rates of hospitalization and ICU admission stayed the same over time.
US legislators vote to declassify info about SARS-CoV-2 origins, the Cochrane Review issues a clarification, and XBB.1.5 now makes up nearly 90% of US cases.
