People who visited the Street Spice food festival in Newcastle are being asked to fill out an online questionnaire after hundreds of people reported symptoms of food poisoning.
Environmental Health Officers are continuing to investigate and are talking to businesses and suppliers to try to identify the source of the outbreak, with results expected to be released this week.
12,000 people are thought to have visited the food festival while it was in the city.
Anyone who attended the event, whether they have been ill or not, are being advised to complete a confidential online questionnaire, available at http://tinyurl.com/streetspice.
More top news
After a wet and windy day things turn colder from tomorrow.
Philip Tron was among the 22 victims killed in the terror attack in Manchester in May. Mum June has spoken out for the first time
A spruce tree has been felled in Kielder Forest, destined for London, where it will stand outside the Houses of Parliament over Christmas