As measles cases in Canterbury rise authorities urge residents to exercise vigilance

Panic is setting in over the Canterbury measles outbreak as more cases of the untreatable disease emerge.

There are now 25 confirmed cases of the virus as 100,000 vaccines arrive in Christchurch.

Health officials have told the public to assume it's everywhere.

Rangiora resident Jacqui Bath has abandoned her home after several measles cases in the North Canterbury town.

She grabbed her two children and fled over 100 kilometres to an isolated part of Banks Peninsula.

"We've hardly seen anyone here anyway and if you don't see anyone you can't catch anything.

"Rangiora really felt like it was the epicentre," Ms Bath told 1 NEWS.

She's not over reacting, her three-year-old son Hugh has leukaemia - he's been immunised but because of his chemotherapy treatment his immune system is at risk.

The Canterbury District Health Board has told 1 NEWS none of those with the disease are seriously ill.

The source of the virus remains unclear, but it's suspected to have come from an international traveller.

With measles cases appearing all over the Canterbury region more people are expected to catch the disease.

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Health officials are warning people to assume the disease is everywhere. Source: 1 NEWS