The measles vaccine is typically given in two doses: the first dose is administered at 9 months of age in countries where measles is common and between 12–15 months in other countries. A second dose is usually given later in childhood, typically at 15–18 months.
Detailed Explanation:
The timing of the measles vaccine administration varies based on the prevalence of measles in a particular region.
-
High-Risk Areas (Measles is Common): In countries where measles is prevalent, the first dose is administered earlier, around 9 months of age. This is to provide protection to infants who are at higher risk of contracting the disease.
-
Low-Risk Areas: In countries where measles is less common, the first dose is given between 12-15 months of age.
Second Dose:
Regardless of when the first dose is given, a second dose is crucial for ensuring long-term immunity. This second dose is generally administered between 15-18 months.
Combination Vaccines:
The measles vaccine is often administered as a combination vaccine, such as:
- MMR: Measles, Mumps, and Rubella
- MMRV: Measles, Mumps, Rubella, and Varicella (chickenpox)
Summary Table:
| Dose | Timing (High-Risk Areas) | Timing (Low-Risk Areas) |
|---|---|---|
| First Dose | 9 Months | 12-15 Months |
| Second Dose | 15-18 Months | 15-18 Months |
Therefore, the exact age measles is given depends on the geographic location and the prevalence of the disease in that area.
