A hepatitis B vaccination programme for inner metropolitan Sydney neonates

Area of Science:

• Public Health
• Immunology
• Epidemiology

Background:

• Hepatitis B poses a significant public health challenge, particularly in diverse urban populations.
• Previous concerns existed regarding vaccination efficacy in mobile urban communities with high foreign-born populations.

Purpose of the Study:

• To assess the effectiveness of a hepatitis B vaccination program for high-risk infants in an urban setting.
• To evaluate vaccination compliance rates in a population with potential barriers to healthcare access.

Main Methods:

• A follow-up study of 1429 infants enrolled between September 1987 and December 1988.
• Vaccinations were administered by early childhood center nurses, with adjustments for parental reports.
• High-risk infants included neonates born to surface antigen-positive mothers, those from high-prevalence countries, Aboriginal infants, and infants of intravenous drug users.

Main Results:

• 87% of infants received two doses, and 73% received three doses of the hepatitis B vaccine.
• An estimated 92% of infants achieved full protection when including vaccinations reported by parents.
• The program demonstrated high compliance rates in a population previously considered difficult for vaccine delivery.

Conclusions:

• The hepatitis B vaccination program was effective in achieving high compliance among high-risk infants in a mobile urban population.
• Current state policies for hepatitis B vaccination may not be optimal for reducing surface antigen carriers in the community.
• Successful implementation highlights the potential for targeted vaccination strategies in diverse urban settings.