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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The bats were tested as part of the response to a Nipah virus outbreak in Kozhikode district, where spillovers have been reported before.
Urinary symptoms were not associated with COVID-19 severity.
mRNA COVID-19 vaccination halved the risk of Guillain-Barre.
Comparing symptoms at 1-month and 3-month follow-up, one study observed a declining trend of long COVID, from 82.1% to 66.7%.
The countries had procured about 916,120 Paxlovid courses, compared with a minimum need for 9,135,953 courses.
Efficiently managed ICUs also saw lower mortality from the novel coronavirus.
The authors said the findings support vaccinating this age-group, despite low incidence of severe disease or hospitalization.
Falling serotonin levels disrupt vagus nerve signaling, which may cause neurocognitive long-COVID symptoms such as memory loss.
The findings could indicate that SARS-CoV-2 can produce pathologic changes to the blood-brain barrier's structural and functional integrity.
The pooled prevalence of long COVID was 12% among unvaccinated participants and 5% among recipients of at least two vaccine doses.
