Coronavirus persisting in faeces offers clues to cause of long Covid

• A US study found that about half of patients shed traces of Covid-19 in their waste in the week after infection, and almost 4 per cent patients still emit them seven months later
• The researchers also linked coronavirus RNA in faeces to gastric upsets, and concluded that Sars-CoV-2 likely directly infects the gastrointestinal tract, where it may hide out