Up to 10 per cent of recovered coronavirus patients in China tested positive later, Wuhan doctors say



About three to 10 per cent of patients who recovered from Covid-19 tested positive again after being discharged from hospital, doctors in Wuhan have found.Researchers around the world are trying to determine whether recovered patients can still infect people with the coronavirus that causes the disease and if they have developed antibodies offering them immunity to the disease.Doctors from Tongji hospital in the city, where the disease was first identified, told state broadcaster CCTV that they…