Attention to the Unseen

STAT reports: In some respects, the Delta variant has changed everything in the Covid-19 pandemic. In others, the same rules still apply. Before the variant of SARS-CoV-2 began spreading rapidly in the United States, Covid-19 vaccines were drastically cutting the number of cases. They were preventing people from being infected. And vaccinated people who got infected were unlikely to infect others. That’s all still true, even with Delta — if just to a lesser extent. Despite the threat of Delta,…

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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…

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The New York Times reports: As coronavirus cases rise across the United States, the fight against the pandemic is focused on an estimated 93 million people who are eligible for shots but have chosen not to get them. These are the Americans who are most vulnerable to serious illness from the highly contagious Delta variant and most likely to carry the virus, spreading it further. It turns out, though, that this is not a single set of Americans, but in…

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