Majority of UK’s 366 monkeypox cases are in London, says health agency

An electron microscope image made available by the Centers for Disease Control and Prevention shows mature, oval-shaped monkeypox virions. Photograph: AP

Four-fifths of the people in England who have been infected with monkeypox live in London, an investigation by the UK Health Security Agency has found.

Of the cases interviewed, 99% of those infected are men and their average age is 38, the agency added after analysing 336 of the 366 confirmed cases found in the UK since the outbreak began last month.