Patients with Long Covid and chronic fatigue tend to have swelling in an area of the brain associated with memory and concentration, according to a study published on Tuesday.

Researchers from Griffith University in Australia used an ultra-high-field magnetic resonance imaging (MRI) machine to analyse how long Covid and myalgic encephalomyelitis -- also known as chronic fatigue syndrome (CFS) -- similarly impact brain structure, Xinhua news agency reported.