Adults who reported 2 or more infections had 76% higher odds of receiving a new medical diagnosis.
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 Global Preparedness Monitoring Board says countries need to bolster primary healthcare systems, establish a pandemic risk monitoring system, and strengthen cooperation.
The excess risk was primarily seen among COVID-19 survivors who were hospitalized for their infections.
The vaccine was tied to lower risks of the outcomes among all age-groups, regardless of major underlying medical conditions and immune status.
But there is 'substantial opportunity' for load-balancing strategies during future pediatric hospital surges to reduce bed strain and harm, the authors say.
The CDC recommends that toddlers receive the varicella (chickenpox) vaccine as a standalone immunization.
In contrast, the condition affected less than 1% of the Swedish population before the pandemic.
The rate of test positivity and percentage of emergency department visits diagnosed as COVID-19 significantly declined in September.
The authors call for more research to identify patient groups that could benefit from repeated treatment for COVID-19 after symptom and/or viral RNA rebound.
Prior COVID-19 infection was associated with a 41% increased risk of all-cause dementia.
Less than half, 42%, of the 1,700 respondents, said it was safe to take an mRNA COVID vaccine in pregnancy.
