What is the appropriate age range for the measles, mumps, and rubella vaccine?

The measles, mumps, and rubella (MMR) vaccine is typically administered to children starting at the age of 12 months. The recommendation from health authorities, such as the Centers for Disease Control and Prevention (CDC), is that the first dose is given between 12 and 15 months of age, along with a second dose usually scheduled between 4 and 6 years of age. This age range is critical because it ensures that children are vaccinated before they reach school age, where they are at a higher risk of exposure to these diseases, particularly in group settings. The vaccine is also considered safe and effective for adults who are not immune, thus the upper limit extending to 60 years is also included in the age recommendation for receiving the vaccine to help control outbreaks.

This answer provides a comprehensive understanding of why the age range stated encompasses both children and adults, maximizing immunity and public health safety.