Breakthrough drug for covid-19 may be risky for mild cases

Scientists in Britain announced a major breakthrough in the battle against the coronavirus last week, reporting they had found the first drug to reduce deaths among critically ill COVID-19 patients.The results were first made public in a sparsely detailed news release. Now the full study, neither peer reviewed nor published yet, has been posted online, and it holds a surprise.The drug — a cheap, widely available steroid called dexamethasone — does seem to help patients in dire strait