JOLIETTE, Que. - The number of confirmed measles cases in Quebec is up to 136 from 119 earlier in the week and health officials are bracing for even more.

They said in an update today all of them are people from northeast of Montreal who have not been vaccinated against the disease.

The cases are centred on one religious group from the region, La Mission de L'Esprit-Saint.

Authorities have said the outbreak is part of one chain of transmission that started when a person with the order became infected at Disneyland in California and returned to the province.

A vaccination program began Thursday at a school in Joliette that had been visited by a child who had measles.

Health officials said today that 10 pupils are still forbidden from attending the school -- three because their parents didn't want them to be vaccinated and seven because they were absent or didn't have the proper documentation.