The World Health Organization (WHO) has called on policy-makers, health-care workers and parents to immediately step up and support vaccination efforts against measles across at-risk age groups.

The appeal came from WHO 's Regional Office for Europe.

A UN spokesman Stephane Dujarric told reporters, seven countries in the region have reported more than 22,000 cases of measles in 2014 and 2015 so far.

He said WHO remains concerned that despite efforts to make safe and effective vaccines available over the last 50 years, measles continues to cost lives and money.

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