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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CDC advisers approve Pfizer vaccine booster doses for seniors and for at-risk adults.
Weekly COVID-19 testing of asymptomatic students and staff in Nebraska roughly doubled the detection rate.
Sweden pledges $243 million more, and other dose donations come from Japan, Italy, Spain, and Denmark.
Multisystem inflammatory syndrome in adults (MIS-A) is a rare but severe hyperinflammatory condition that begins roughly 4 weeks after COVID-19 symptom onset and likely results from an outsized immune response, concludes a systematic review yesterday in JAMA Network Open.
Despite the major new pledge from the US, the world needs 2 billion doses to meet global vaccination goals.
As ACIP deliberates, other data still show racial gaps among vaccination rates.
Effectiveness remained high despite underlying health conditions, frontline status.
Overall SARS-CoV-2 attack rates in airplane flights under 4 hours were less than 1%, according to a study of 177 flights departing from Wuhan, China, in January 2020. The results, published yesterday in Clinical Infectious Diseases, also indicated that people in the same row as an index case had the highest risk of infection.
J&J released non–peer-reviewed data for boosters after 2 months, 6 months.
Though kids' COVID cases aren't usually severe, cases are rising expotentially, and experts say data are ugently needed to gauge long-term effects of illness.
