Salmonella cases in UK likely to rise until source of outbreak is found

About 1.6bn eggs are imported into the UK each year, according to the British Egg Industry Council. Photograph: Ezra Bailey/Getty Images

Salmonella cases in the UK are expected to rise until the common source is identified, something that is notoriously difficult to establish, experts have warned.

There have been 474 confirmed cases and one death linked to the current outbreak, according to the UK Health Security Agency (UKHSA), with the latest investigations suggesting it is associated with eating imported eggs in cafes and restaurants.