NINE-YEAR EFFICACY OF HEPATITIS B VACCINATION WITHLOW-DOSE IN THE THIRD INJECTION
- Author:
Hong ZUO
;
Huiwen XU
;
Xueliang WANG
;
Guihua ZHUANG
;
Zhilun WANG
- Publication Type:Journal Article
- Keywords:
hepatitis B vaccine;
low-dose;
efficacy
- From:
Journal of Pharmaceutical Analysis
2000;12(1):15-16,30
- CountryChina
- Language:Chinese
-
Abstract:
Objective In order to observe the efficacy of low-dose in the third injection of hepatitis B vaccine. Methods 126 children aged 5～9 years were enrolled in a double-blind, place-controlled and randomized field trial. They were randomly divided into 10μg and 20μg dose group, and were redivided into 2μg, 5μg, 10μg, 20μg or non-in jected subgroups when the third booster injections were given. Results During the 9 years follow-up, the differences of the anti-HBs levels(GMT) among the groups were not significant at every time (P ＞ 0. 05). The GMTs at the ninth year(T108) were 7. 0, 6. 4, 9.9, 6.1, 9.7, 5. 4 and 7.4, respectively (P＞ 0. 05). The HBV infection rates among the groups had no significant difference (P ＞ 0. 05). The protective rates in the groups were all higher than 75％ at T108. Conclusion According to the data, it can be concluded that the third injection with low-dose has no influence on the vaccine efficacy(either short-term or long-term efficacy).
