During the investigation of these cases, information came to light which identified that a substantial number of pupils form St Johns School in Caldervale had been ill with similar symptoms prior to Easter vacation. In all, 12 of the 26 pupils attending the school had been ill and three adults have since developed symptoms.
All the families affected have been traced, interviewed and samples taken where appropriate. This have confirmed several additional cases of this particular infection and results are still awaited for a number of cases.
The council's environmental health officers have issued advice as well as 'boil water' notice to the properties served by the same water supply.
A potential source of contamination has already been identified and discussions are ongoing with the owners of those properties affected and North West Water to secure both a short term and a more permanent solutions to the problems.