Why Covid-19 cases are surging in the UK

After a relatively quiet summer, the United Kingdom is now suffering a new onslaught of Covid-19. Where the seven-day rolling average for much of the summer was regularly below 1,000 cases a day, it began increasing in September, and by October 5, the new average had reached 15,505. The counts are complicated by test shortages and changes in the way cases are counted, but it’s clear the country is going through a serious second wave.

Read more of this story about why the UK’s surge in cases at Vox.