What makes the Delta covid-19 variant more infectious?

Covid cases are on the rise in England, and a fast-spreading variant may be to blame. B.1.617.2, which now goes by the name Delta, first emerged in India, but has since spread to 62 countries, according to the World Health Organization. Delta is still rare in the US. At a press conference on Tuesday, the…


This entry originally appeared at www.technologyreview.com/2021/06/10/1026090/delta-covid-19-variant-more-infectious, and may be a summary or abridged version.