Which vaccine is commonly given at around 12 months of age in routine schedules?

Which vaccine is commonly given at around 12 months of age in routine schedules?

• A. MMR
• B. DTP
• C. Hepatitis B
• D. Varicella

Answer: (A)

The timing of the first dose of measles, mumps and rubella in routine schedules is being tested. This vaccine is typically given around 12 months because maternal antibodies against these viruses have declined enough to allow a robust immune response, while the child remains at risk of exposure in early childhood. Administering MMR at this age provides simultaneous protection against three diseases with one shot and is followed by a second dose later to ensure longer-lasting immunity. Other vaccines follow different timelines: the DTaP (DTP) series is started earlier in infancy with boosters later, Hepatitis B begins in the birth to early infancy period, and Varicella may also be offered around this age in some programs, but the most consistently timed first dose around one year is MMR.

The timing of the first dose of measles, mumps and rubella in routine schedules is being tested. This vaccine is typically given around 12 months because maternal antibodies against these viruses have declined enough to allow a robust immune response, while the child remains at risk of exposure in early childhood. Administering MMR at this age provides simultaneous protection against three diseases with one shot and is followed by a second dose later to ensure longer-lasting immunity. Other vaccines follow different timelines: the DTaP (DTP) series is started earlier in infancy with boosters later, Hepatitis B begins in the birth to early infancy period, and Varicella may also be offered around this age in some programs, but the most consistently timed first dose around one year is MMR.