Abbreviated Name:
Measles immunization coverage rate (MCV1)
Indicator Name:
Measles immunization coverage rate (MCV1)
Domain:
Health System Response/ Service coverage
Related Terms:
Immunization- Measles
Definition:
The percentage of children under one year of age who have received at least one dose of measles-containing vaccine in a given year. For countries recommending the first dose of measles vaccine in children over 12 months of age, the indicator is calculated as the proportion of children less than 12-23 months of age receiving one dose of measles-containing vaccine
Measurment Method:
Service/facility reporting system ("administrative data"): Reports of vaccinations performed by service providers (e.g. district health centers, vaccination teams, physicians) are used for estimates based on service/facility records. The estimate of immunization coverage is derived by dividing the total number of vaccinations given by the number of children in the target population, often based on census projections. Household surveys: Survey items correspond to children’s history in coverage surveys. The principle types of surveys are the Expanded Programme on Immunization (EPI) 30-cluster survey, the UNICEF Multiple Indicator Cluster Survey (MICS), and the Demographic and Health Survey (DHS). The indicator is estimated as the percentage of children aged 12–23 months who received at least one dose of measles vaccine either any time before the survey or before the age of 12 months.
Numerator:
Children under one year of age who have received at least one dose of measles-containing vaccine in a given year. For countries recommending the first dose of measles vaccine in children over 12 months of age, the number of children less than 12-23 months
Denominator
The total number of individuals in the target group for each vaccine. For vaccines in the infant immunization schedule, this would be the total number of infants surviving to age one.
Estimation method:
WHO and UNICEF jointly developed a methodology to estimate national immunization coverage from selected vaccines in 2000. The methodology has been refined and reviewed by expert committees over time. The methodology was published and reference is available under web site https://www.who.int/immunization/monitoring_surveillance/routine/coverage/en/index4.html. Estimates time series for WHO recommended vaccines produced and published annually since 2001. The methodology uses data reported by national authorities from countries administrative systems as well as data from immunization or multi indicator household surveys
Disaggregation:
Age group, gender, socio economic status, place of residence - Also: MCV2 coverage group
Primary data sources:
National Health Information Systems or National Immunization systems National immunization registries
Alternate data sources:
High quality household surveys with immunization module (e.g. DHS, MICS, national in-country surveys)
Measurment frequency:
Annual tracking through facility information systems, supplemented by periodic estimation through household surveys
