More than three quarters of COVID-19 patients hospitalised for treatment have at least one ongoing symptom six months after initially becoming unwell, according to a study published in The Lancet journal. The research looked at the long-term effects of the novel coronavirus infection in 1,733 patients first diagnosed in Wuhan, China between January and May followed to June and September. In the study, scientists, including those from Jin Yin-tan Hospital in China, interviewed the patients face-to-face using questionnaires to evaluate their symptoms and health-related quality of life. The discharged patients also underwent physical examinations, lab tests, and a six-minute walking test to gauge their endurance levels.