When should the MMR vaccine be administered?

The MMR vaccine, which protects against measles, mumps, and rubella, is recommended to be administered between 12 and 15 months of age. This timing is crucial because it allows the vaccine to take effect when the child's immune system is sufficiently developed to respond effectively.

Before 12 months, infants may still have some maternal antibodies that can interfere with the vaccine's efficacy, reducing the immune response. By administering the MMR vaccine in this window, the child is more likely to develop adequate immunity against these diseases.

Following the initial dose, a second dose is typically given between 4 and 6 years of age to ensure lasting immunity and is important for maintaining public health by reducing the incidence of these communicable diseases. This vaccination schedule helps to prevent outbreaks and protect both the vaccinated individuals and the community at large.