Surprise dip in UK Covid cases baffles researchers
Nature reports: Scientists are scratching their heads over the precipitous decline in daily COVID-19 infections in the United Kingdom following their rapid rise earlier in the year. Officially recorded new cases more than halved in just two weeks: from a high of 54,674 on 17 July to 22,287 on 2 August. “Nobody really knows what’s going on,” says epidemiologist John Edmunds at the London School of Hygiene and Tropical Medicine (LSHTM). In particular, it’s not clear whether this sudden trend…