MMR vaccination is given in how many doses?

MMR vaccination is given in how many doses?

• A. One dose
• B. Two doses
• C. Three doses
• D. Four doses

Answer: (C)

Two doses. The MMR vaccine is given in two separate injections to ensure strong, durable protection. The first dose is given around 12–15 months to start immunity, and the second dose is given around 4–6 years (often before school entry) to catch anyone who didn’t respond to the first dose or whose immunity wanes. Together, these two doses provide about 97–99% protection against measles, mumps, and rubella. A third dose isn’t part of the routine schedule, though in outbreak situations or for certain high-risk groups, additional dosing may be considered.

Two doses. The MMR vaccine is given in two separate injections to ensure strong, durable protection. The first dose is given around 12–15 months to start immunity, and the second dose is given around 4–6 years (often before school entry) to catch anyone who didn’t respond to the first dose or whose immunity wanes. Together, these two doses provide about 97–99% protection against measles, mumps, and rubella. A third dose isn’t part of the routine schedule, though in outbreak situations or for certain high-risk groups, additional dosing may be considered.