WASHINGTON, Feb 22: For people previously infected with COVID-19, their risk of hospitalisation or death is 88 per cent lower for at least 10 months compared to those who had not been previously infected, according to a study published in The Lancet journal. The analysis also suggests that the level and duration of protection against reinfection, symptomatic disease and severe illness is at least on a par with that provided by two doses of the mRNA vaccines (Moderna, Pfizer-BioNtech) for […]