A drug used to treat rheumatoid arthritis could help to save the lives of one in 25 patients admitted to hospital with Covid-19 and reduce the need for a mechanical ventilator, scientists have found. In the Recovery trial, researchers found that when given alongside a steroid, known as dexamethasone, tocilizumab reduced the absolute risk of mortality by four percentage points. Report by Blairm. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn