COVID report more than 200 symptoms across 10 organ systems, according to the largest global study to date of 'long-haulers' published on Thursday.
The researchers created a web-based survey designed to characterise the symptom profile and time course in patients with confirmed or suspected long COVID, who experience prolonged symptoms.
With responses from 3,762 eligible participants from 56 countries, the study, published in the journal EClinicalMedicine, identified a total of 203 symptoms in 10 organ systems, of which 66 symptoms were tracked for seven months.
The most common symptoms were fatigue, post-exertional malaise -- worsening of symptoms after physical or mental exertion -- and cognitive dysfunction, often called brain fog.