PRO/AH/EDR> COVID-19 update (70): gangrene, challenge trials, immunity, cancer, WHO, global

COVID-19 — Worldwide/Unknown
COVID-19 is described as a short-term illness caused by infection with the novel SARS-CoV-2 coronavirus. Public health officials tend to say people will recover within 2 weeks or so.
However, it’s become increasingly clear that this is not the case for everyone, and that the 2-week period is only the ‘acute illness’ phase.
The North Bristol NHS Trust’s Discover project, which is studying the longer-term effects of coronavirus, found that out of a total of 110 patients given a 3-month