`` We 've brought down child mortality dramatically with these vaccination campaigns and we are making dramatic progress , but the challenge is getting people to understand what the world was like before this . '' The issue has become muddied for some people in developed countries . More than 100 people have been diagnosed with measles in Swansea , Wales . Diseases such as measles , whooping cough can occur , but none are available .
The issue has become muddied for some people in developed countries . More than 100 people have been diagnosed with measles in Swansea , Wales . Diseases such as measles , whooping cough can occur , but none are available .