HealthDo face masks work against the coronavirus and should you wear one? The advice on widespread face mask use to protect against covid-19 varies wildly, but there is some evidence that they stop sick people spreading the virus Analysis
HealthCoronavirus will play out very differently in world's poorest nations Cases of covid-19 have been slow to appear in developing economies, but now they are ramping up. Slums and refugee camps could be particularly vulnerable News