2.5 Key points

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    ■  The measles vaccine is a live attenuated virus vaccine.


    ■  There are few absolute contraindications to the vaccine, and the adverse effects are generally minor and transient.


    ■  Seroconversion appears 10 to 14 days after vaccination.


    ■  The seroconversion rate after one dose of vaccine ranges from 85 to 95%, depending on the age at administration.


    ■  Measles vaccination is included in all national immunization programmes.


    ■  Vaccination should be done early (starting at age 9 months). Any child not vaccinated before 1 year of age should be protected as soon as possible.


      In certain high-risk situations (malnutrition, HIV infection, population displacement, etc.), it is recommended that children be vaccinated starting at age 6 months and given a second dose at age 9 months.


      Administering a second dose of measles vaccine and getting high immunization coverage are essential to avoiding outbreaks.