Hepatitis B vaccine in infants: a randomized controlled trial comparing gluteal versus anterolateral thigh muscle administration

Revista do Instituto de Medicina Tropical de São Paulo

Andrea Santos Rafael Alves²  Cristiane M.r. Nascimento¹  Celso H. Granato¹  Helena Keiko Sato¹  Marina F. Morgato¹  Claudio S. Pannuti² 

[1] ,Universidade de São Paulo Faculdade de Medicina Department of Infectious Diseases SP ,Brasil

关键词: Hepatitis B;    Vaccine efficacy;    Injection;    Intramuscular;    Gluteal injection;    Infant;   

DOI  :  10.1590/S0036-46652001000300004

来源: SciELO

【 摘 要 】

A significantly diminished antibody response to hepatitis B vaccine has been demonstrated in adults when the buttock is used as the injection site. However, in Brazil, the buttock continues to be recommended as site of injection for intramuscular administration of vaccines in infants. In this age group, there are no controlled studies evaluating the immunogenicity of the hepatitis B vaccine when administered at this site. In the present study, 258 infants were randomized to receive the hepatitis B vaccine either in the buttock (n = 123) or in the anterolateral thigh muscle (n = 135). The immunization schedule consisted of three doses of hepatitis B vaccine (Engerix Bâ, 10 mug) at 2, 4 and 9 months of age. There were no significant differences in the proportion of seroconversion (99.3% x 99.2%), or in the geometric mean titer of ELISA anti-HBs (1,862.1 x 1,229.0 mIU/mL) between the two groups. This study demonstrates that a satisfactory serological response can be obtained when the hepatitis B vaccine is administered intramuscularly into the buttock.

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