More than 250 people are sick in an E. coli O157 outbreak in the United Kingdom that may have been caused by salad.
There have been 259 confirmed cases in the UK with sample dates ranging from late August to the end of October, although most people fell ill in August and early September.
Shiga toxin-producing E. coli (STEC) O157 has affected people in England, Scotland, Northern Ireland, and Wales. The majority of those sick are adults.
Food Standards Scotland (FSS), the UK Health Security Agency (UKHSA) and Food Standards Agency (FSA) are investigating the outbreak.
It is the largest E. coli outbreak since Whole Genome Sequencing (WGS) started to be used in 2014, according to UKHSA.
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