Long COVID now has a formal definition from the WHO: What to know
Long COVID now has a formal definition from the WHO: What to know
On Oct. 6, 2021, the World Health Organization (WHO) announced the first official definition of what constitutes long COVID. The medical community has been aware that while most people recover from COVID-19 within a matter of weeks, some will experience lingering symptoms for four or more weeks after developing COVID-19. Until now, there has not been a formal definition for this condition. Referring to it as “post COVID-19 condition,” the document says that long COVID “occurs in individuals with a history of probable or confirmed SARS-CoV-2 infection, usually 3 months from the onset of COVID-19, with symptoms that last for at least 2 months and cannot be explained by an alternative diagnosis.” The definition further states that common symptoms may include fatigue, cognitive dysfunction, and several others that can impact daily functioning. Joseph A. Roche, BPT, Dip. Rehab. PT, PhD, associate professor in the Physical Therapy Program at Wayne State University and member of the American Physiological Society who has performed research into the effects of long COVID, said the case had been made that long COVID may resemble a condition known as “myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS),” which can affect some individuals after other viral illnesses. “What makes post COVID-19 condition more concerning than ME/CFS,” said Roche, “is that there is not just physical and mental fatigue, but also persistent and recurrent problems that affect the lungs, heart, blood vessels, and other organs and tissues.”