Public health officials in the United Kingdom are investigating an outbreak of E. coli O157 that has sickened almost 200 people in a month.
Since early September, 192 genetically linked cases of Shiga toxin-producing E. coli (STEC) O157 have been identified in England, Scotland, Northern Ireland and Wales.
The majority of people sick are adults but there have been no deaths linked to the incident.
No source for the rise in infections has yet been identified but patients are being interviewed to help find the vehicle of infection.
There have also been no cases of hemolytic uremic syndrome (HUS) reported. HUS is a type of kidney failure associated with E. coli infections that can result in lifelong, serious health problems and death.
Dr. Lesley Larkin, head of surveillance, gastrointestinal infections and food safety at the UK Health Security Agency (UKHSA), said a rise in E. coli cases notified to public health surveillance systems had been seen in recent weeks.