Immunity to Measles Virus in the Thai Population Age 18-30 Years and Predictive Factors

Immunity to Measles Virus in the Thai Population Age 18-30 Years and Predictive Factors

Prevalence of participants who have protective immunity to measles virus is less than ninety percent.

Predictor of adequate measles antibody levels include the following :

• History of measles infection
• History of complete measles primary immunization( 2 doses with at least 1 month interval after age of 9 months)
• History of measles exposure

Predictor of inadequate measles antibody levels include the following :

• Born outside Thailand
• History of staying outside Thailand for long time in childhood
• Living in the rural area for a long period in childhood
• Fail to participate school system on time

Inclusion Criteria:

• Age 18-30 years old

Exclusion Criteria:

• Last measles vaccination less than 10 years of age
• Immunocompromised host including congenital immune defect, splenectomy or splenic dysfunction, history of suspect HIV exposure, taking immunosuppressant
• Receiving blood or blood product within 3 months
• Receiving others vaccinations or immunoglobulins or any medication that possibly decrease immune response