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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Vaccine effectiveness (VE) for the two-dose Pfizer/BioNTech COVID-19 vaccine was up to 91.5% in Israeli teens 12 to 15 years old during the Delta (B1617.2) variant outbreak, according to a study published yesterday in Emerging Infectious Diseases.
The data show that 1.2 million fewer people have been diagnosed and treated for TB in 2021 than in 2019.
In the past week, new daily COVID-19 cases fell 20%, deaths dropped 0.8%, and hospitalizations fell 8.9%.
Such a drop has not been seen in a single year since World War II in Western Europe.
Delta variant transmission is complicating plans for easing COVID-19 restrictions in some Asian nations.
Taking anticoagulants before contracting COVID-19 is associated with a 43% lower risk for hospital admission, and receiving anticoagulants while in the hospital is tied to a lower death rate, according to a study published late last week in EClinicalMedicine.
CDC director explains her rationale for offering third doses to frontline and essential workers.
Demand for the treatment has been skyrocketing in US hot spots such as Florida.
"I think it's fascinating that something like telemedicine ... actually worsened those disparities."
Of 1,061 people who were hesitant about receiving the COVID-19 vaccine at the end of 2020, 32% were at least partially vaccinated by spring 2021, and 37% said they were likely to be, according to a research letter published today in JAMA Network Open.
