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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A third dose of the Pfizer/BioNTech mRNA COVID-19 vaccine appears to counteract waning vaccine protection in the short term, according to a preliminary case-control analysis of more than 500,000 coronavirus tests in Israel.
Merck's pill is on track to be the first approved treatment for COVID-19 infections.
Also, sequencing found hints that travelers with Omicron likely contracted the virus from different people in different locations.
Those with compromised immune systems get COVID-19 after vaccination 3 times more often—but still rarely—a new study shows.
Many COVID-19 survivors experience impaired circulation, abnormal breathing patterns, and chronic fatigue syndrome an average of 9 months after diagnosis, finds a small, single-center study yesterday in JACC: Heart Failure.
Global officials are assessing how the variant will affect the arc of the pandemic.
Heads of vaccine firms say they can quickly retool existing vaccines to address the variant if needed.
One study suggests the shots saved about 470,000 people 60 years and older in Europe.
During a meeting tomorrow at the Radiological Society of North America (RSNA), scientists will present data from the largest multi-institutional international study to date on brain complications of COVID-19 and share that 1 in 100 patients hospitalized with COVID-19 will likely develop complications of the central nervous system like stroke, hemorrhage, and other potentially fatal complications.
The US joins a growing list of nations that have banned flights from South Africa and related destinations.
