Parents in the borough of Rochdale are being urged to make sure their children are immunised against measles, mumps and rubella (MMR).
The MMR vaccine is given on the NHS as 2 injections. The first is given to babies as part of their routine vaccination schedule, usually within a month of their first birthday. Children then have a 2nd injection of the vaccine before starting school, usually at 3 years and 4 months.
Figures recently published by the NHS show that 1994 children in the borough of Rochdale haven't had their first vaccination and a further 4223 have failed to get their 2nd vaccination.
Children up to the age of 18 who missed, or only partially completed, their earlier MMR vaccination can have a catch-up vaccination.
If you know or suspect your child has not been fully immunised, check with your GP and arrange for a catch-up vaccination if necessary.
Andrea Fallon, our Director of Public Health, said: "It's really important that children have 2 doses of the MMR vaccine to protect themselves and their families' health.
"We are asking parents who are unsure if their children are fully immunised to check by contacting their GP and organising a catch-up vaccination if necessary."