Researchers now better understand the immune system in those experiencing long COVID-19.
The study team examined a type of immune cell called monocyte which travels through a person’s bloodstream to their lungs where they surround and help kill the virus.
It was subsequently established that irregular migration of these cells is linked to shortness of breath.
The researchers discovered that long COVID-19 patients with shortness of breath had unique profiles compared to long COVID-19 patients with ongoing fatigue and those experiencing no symptoms at all.
The study finding a link between monocyte function and specific long COVID symptoms may provide an important first step on the road to possible treatments.