Almost 25 percent haven't had either of the MMR doses
Almost a quarter of all children under five on the Island haven't had any measles vaccine.
Manx Care says uptake has fallen since the Covid-19 pandemic.
Currently there are no cases here, but there have been a number of outbreaks causing concern in the UK.
Head of Nursing Paul Moore says it can present similar symptoms to a common cold at first:
First in series of 'Isle be Ready' sessions to take place next month
More online services for drivers
New support centre 'an oasis' for cancer patients
Orrisdale Road to close for a month for resurfacing works