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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"If we want to protect the American people and our economy, we must defeat the virus everywhere."
Tested boosters were Novavax, AstraZeneca, Pfizer, Valneva, J&J, Moderna, and CureVac.
Close contact with COVID-19 cases outside of work is the biggest risk factor for infections among American healthcare workers, according to research published yesterday in Emerging Infectious Diseases.
The plan comes as the nation records its 2nd and 3rd Omicron cases, in Minnesota and Colorado.
A researcher notes: "Both vaccines are incredibly effective, with only rare breakthrough cases."
Data yet to be peer-reviewed show the Omicron variant may be highly transmissible.
The neutralizing monoclonal antibody lenzilumab significantly raised survival without the use of mechanical ventilation in hospitalized COVID-19 patients and had a good safety profile, according to a phase 3 clinical trial yesterday in The Lancet Respiratory Medicine.
The case-patient traveled to South Africa and returned to the San Francisco area on Nov 22 and is isolating at home.
Delta-related COVID-19 activity showed signs of a plateau last week, the WHO says.
Severe COVID-19 may bring more than twice the risk of dying within a year.
