Abstract
We examined long-term anti-hepatitis A virus antibody persistence in Argentinean children 10 years after the initial study in which they received 2 doses of inactivated hepatitis A vaccine (Avaxim 80U). Of the 111 children, 48 from the initial trial were enrolled. Of 48, 47 (97.9%) participants had serum anti-hepatitis A virus antibody titers > or =20 mIU/mL, with the geometric mean concentration of 390.91 (+/-370.14) mIU/mL; (95% confidence interval, 282.2-499.5 mIU/mL), range, 36 to 1860.
MeSH terms
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Adolescent
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Argentina / epidemiology
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Chi-Square Distribution
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Child
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Female
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Follow-Up Studies
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Hepatitis A / epidemiology
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Hepatitis A / immunology
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Hepatitis A / prevention & control*
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Hepatitis A Antibodies / blood
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Hepatitis A Vaccines / administration & dosage*
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Hepatitis A Vaccines / immunology*
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Humans
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Immunization Schedule
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Male
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Statistics, Nonparametric
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Vaccines, Inactivated / administration & dosage
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Vaccines, Inactivated / immunology
Substances
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Hepatitis A Antibodies
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Hepatitis A Vaccines
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Vaccines, Inactivated