As of Friday last week, 57 people (21 in Wales and 36 in England) have been confirmed as having contracted an unusual strain of Samonella (Salmonella Typhimurium), 9 of which have needed hospitalisation .
The outbreak was first detected in northern Wales in August with additional clusters being investigated in England. The source of the outbreak is yet to be identified but investigations are focussing on samples of ham from small independent butchers.
Symptoms of Salmonella food poisoning can include fever, abdominal cramps, vomiting and diarrhoea. It is usually spread by eating raw or undercooked contaminated meat, eggs and diary products.