Doctors have urged people in Greater Manchester to make sure they and their children are vaccinated against measles after a sharp recent increase in cases.
Public Health England said there had been 32 confirmed cases across Greater Manchester so far this year.
At the end of January there had only been five confirmed cases.
“The majority of the cases are in unvaccinated children,” said Dr Kristina Poole, from Public Health England North West.
Experts have warned in recent years that a rise in the number of measles cases may be linked to the controversy surrounding the MMR vaccine used to immunise people against it.