Current vaccine strains show high neutralization against the latest variants, but the LP.8.1 antigen may provide similar or moderately higher cross-reactive antibody response.
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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A surveillance study of US children during the first wave of the pandemic found that multisystem inflammatory syndrome in children (MIS-C) was a rare complication associated with SARS-CoV-2 infection, but incidence was significantly higher in non-White racial and ethnic groups, US researchers reported yesterday in JAMA Network Open.
For every 20 percentage points of vaccinated people, positive COVID-19 tests in unvaccinated children halved.
The FDA has granted an extension on the shelf life of the Johnson & Johnson vaccine, to 4.5 months.
Elsewhere, European officials say only 30% of the population has received 1 vaccine dose.
High doses of intravenous immunoglobulin (IVIG) in conjunction with an anticoagulant were associated with resolved vaccine-induced immune thrombotic thrombocytopenia (VITT) in three patients, according to a report yesterday in the New England Journal of Medicine.
VITT occurs when antibodies attack protein factor 4 (PF4), leading to blood clumping and clots.
The risk of severe COVID-19 or death is far greater than any posed by the vaccine, a study author says.
Also, President Biden is expected to announce that the US plans to donate 500 million vaccine doses globally.
PAHO's head notes two worlds: "One quickly returning to normal, and another where recovery remains a distant future."
A study of adults with intellectual and developmental disabilities (IDD) living in New York City group homes has identified older age, larger residential settings, Down syndrome, and chronic kidney disease as risk factors for COVID-19 infection, with heart disease as a risk factor for related death.
Automated software that simulates people is the primary driver of COVID-19 misinformation, a study finds.
