Fatigue and headache are the most common symptoms reported by individuals on an average of over four months out from Covid-19 infection, finds a study published in the journal 'ScienceDirect'. The study reported preliminary findings from 200 patients enrolled on an average about 125 days after testing positive for coronavirus.

Eighty per cent of all the participants reported neurological symptoms with fatigue, the most common symptom, reported by 68.5 per cent, and headache close behind at 66.5 per cent. A reason fatigue appears to be such a major factor among those who had Covid-19 is potentially because levels of inflammation, the body's natural response to an infection, remain elevated in some individuals, explained researchers from the Medical College of Georgia in the US.