New Delhi, (PTI) Persistent inflammation in long Covid patients has been linked to depleting serotonin levels and, in turn, several symptoms such as brain fog, fatigue and memory loss.
Researchers at the University of Pennsylvania’s School of Medicine, US, found that the stool samples of some long Covid patients showed traces of the Covid-causing virus, SARS-CoV-2, months after acute infection.
They found that these remaining viral particles triggered the immune system to release virus-fighting proteins called interferons, which produce inflammation in the gastrointestinal (GI) tract.
