There has been a steady increase in the number of cases of measles in the North East - with around 30 new cases being diagnosed every week.
The most affected are children living on Teesside and the last outbreak was in Hartlepool in 2009 where clinics were set up so more children could be vaccinated.
Professor Peter Kelly, the director of Teesside's measles outbreak control team, spoke to ITV News about how parents can protect their children against the disease.
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