An outbreak of E coli has been identified in Dorset after a child was confirmed to be infected with the disease.
The child is one of two from the county who are currently in hospital with hemolytic uremic syndrome (HUS), a complication of E coli infection.
Public Health England, which is also carrying out tests on three further children, has refused to divulge any details about the location of the outbreak or where the children are from.
Last year 10 people in Dorset were affected by the disease between July and November.