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Alaska Native Medical Center
Delayed hepatitis A booster still effective in people older than 2 years
September 10th, 2003
Delayed hepatitis A booster is still effective in people older than two years. "Current immunization schedules for hepatitis A vaccine specify administration of a booster within 6-12 or 6-18 months of the primary dose. However, there may be circumstances that disrupt this schedule and the efficacy of administering a booster beyond the recommended time is a practical concern for healthcare providers," investigators in the United States report. "In this study, a booster was administered to 268 participants (137: <18 years old), an average of 27 months (range 20-31) after the primary dose," said James L. Williams and collaborators at the Alaska...
Source: Biotech Week (2003-09-10)
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