Health officials identify source of US explosive diarrhoea outbreak

The Food and Drug Administration (FDA) said that Taylor Farms, which supplies the Taco Bell food chain, had confirmed the sample was taken from a product not part of its current recall announced on Friday.

In a statement, Taylor Farms said it has "stopped receiving product from the implicated lot, suspended distribution of the iceberg lettuce from Central Mexico, notified [its] customers and [is] continuing to work with the FDA, CDC, and state authorities".

Thousands of people have been infected with Cyclospora linked to iceberg lettuce supplied by Taylor Farms and sold at Taco Bell locations in at least five states, according to the Centers for Disease Control and Prevention (CDC).