Researchers in England say they have the first evidence that a drug can improve Covid-19 survival. A cheap, widely available steroid called dexamethasone reduced deaths by up to a third in severely ill patients. This is good news for India. One saved life for every eight to 25 people treated may not seem like much, but there are thousands of people hospitalised around the world right now who could benefit from this medicine, and thousands more are likely to join them if current trends continue. This drug has a better chance than most to reach patients worldwide and could lead