Rubella seroepidemiology in Hawaii

Area of Science:

• * Public Health
• * Immunology
• * Epidemiology

Background:

• * The introduction of the rubella vaccine aimed to reduce susceptibility.
• * Understanding current susceptibility is crucial for public health strategies.

Purpose of the Study:

• * To assess rubella susceptibility levels in adolescent and adult women in Hawaii.
• * To identify factors associated with rubella susceptibility 10 years after vaccine introduction.

Main Methods:

• * A large-scale serosurvey conducted from September 1977 to June 1979.
• * Collected serum specimens from 3,852 women.
• * Gathered data on demographics, migration, vaccination history, and household occupation.
• * Analyzed data using log-linear models.

Main Results:

• * 23.8% of women tested were susceptible to rubella (antibody titre < 8).
• * Rubella vaccination history, birthplace, ethnicity, number of siblings, and island of residence were linked to susceptibility.

Conclusions:

• * The observed low rubella susceptibility rate may indicate the effectiveness of the rubella vaccination program.
• * Continued monitoring and targeted interventions are important for maintaining herd immunity.