An Evaluation on 10 years Effectiveness of Large-scaleHepatitis B Vaccination in Neonates

In order to evaluate the effectiveness of largescale infant hepatitis B vaccination performed 10 years in Long An county,a survey on the coverage rate of hepatitis B vaccine and incidence of hepatitis B in children aged 0-9 years was carried out.The results showed that the average coverage rates was 88.96% in 1987-1996.After 10 years of hepatitis B vaccination,the incidence of hepatitis B was 4.9 per 100,000 in children aged 0-9 years,it was decreased by 85.52%,as compared with the incidence of 33.85 per 100,000 in same age group in 1987. The protective rate and immunization success rate were 87.90% and 75.34%,respectively.