date:Mar 08, 2013
the council's director of regulatory services and public protection, said officers were working with 16 businesses involved in the festival.
He said: Further results will be available in due course.
The event organisers are co-operating fully and we are continuing to investigate the source of the outbreak.
One of the organisers, Bob Arora, said a full list of precautions had been taken to ensure high levels of hygiene.
About 12,000 people are believed to have attended the event.