A public health consultant is calling for parents who haven't had their children immunised against measles, to get it done as soon as possible.
Dr Philip Monk, who works for the Health Protection Agency in the East Midlands, is urging parents with children between 10 to 16 years old to get vaccinated.
2013 is expected to be the worst year for measles in the UK for the past two decades. Read more about the illness and how it is treated.
15 cases of measles have been recorded in the East Midlands in the first three months of this year.