The study followed 113 patients at four different hospitals in Switzerland with mild and severe COVID-19 and found that 40 had symptoms of long COVID at six months, 22 of whom had persistent symptoms at 12 months. Researchers looked at blood samples from the 40 who experienced long COVID symptoms, compared them to controls who were not infected with COVID-19, and found that those who had long COVID had evidence of inflammation (increased complement activity), blood cell dysregulation (hemolysis and platelet activation) and tissue injury in their blood.
While these results finding evidence of inflammation in patients with long COVID symptoms are not entirely surprising nor specific to long COVID, they are a step forward in identifying the cause of long COVID.
[
add
]
[
|
|
...
]