When it comes to getting vaccinated, convenience is one of the most important factors.
More appointments = more planning and time needed = a higher likelihood of vaccination falling through the cracks.
That’s why, as one of our commenters pointed out (we love you, commenters!), splitting the MMR vaccine into multiple shots* might make it harder for kids to get fully vaccinated on the proper schedule.
There’s now an executive order in the U.S. about splitting the combined measles-mumps-rubella (MMR) vaccines into 3 separate injections, given at separate appointments. There is no current plan to do this in Canada.
Convenience is one of the three C’s of vaccine hesitancy – can you name the other two? 😉
Sources
- Kids with summer birthdays are more likely to get the flu | CIDRAP – University of Minnesota | June 2026
- Birth Month and Influenza Vaccination in Children | The New England Journal of Medicine | July 2020
- What influences vaccine acceptance: A model of determinants of vaccine hesitancy | The SAGE Vaccine Hesitancy Working Group – World Health Organization | March 2013
- Why the MMR vaccine is given as one shot, and what separating it into more could mean | abc News | August 2026
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