WHO moves to update Covid-19 guidance after 'major breakthrough' in drug study

The World Health Organization (WHO) said it was moving to update its guidelines on treating people stricken with Covid-19 to reflect results of a clinical trial that showed a cheap, common steroid can help save critically ill patients. Trial results announced on Tuesday by researchers in Britain showed dexamethasone, used since the 1960s to reduce inflammation in diseases such as arthritis, cut death rates by around a third among the most severely ill COVID-19 patients admitted to...