A million children who missed out on getting the MMR vaccine in England are being targeted in a campaign to raise the level of protection against measles after an outbreak in Wales. 2013 is set to be the worst year for measles outbreaks in 20 years
The jump in the number of confirmed cases of measles has mainly been attributed to the number of 10 to 16-year-olds who missed out on vaccination in the late 1990s and early years of 2000.
At the time, there were fears of a link between autism and the MMR vaccine, which has since been discredited.
The MMR vaccine is offered to children when they are 12 to 13 months old giving 95% protection. A second dose is given at around three-and-a-half-years-old which boosts the level of protection to 99%.
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.
13 cases of measles have been recorded in the West Midlands in the first three months of this year.