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AAP Grand Rounds 2:3-4 (1999)
© 1999 American Academy of Pediatrics
| The first 20% of the full text of this article appears below. |
To evaluate the efficacy of hepatitis A vaccine in preventing secondary infection among susceptible household contacts, a randomized controlled trial was conducted in Naples, Italy, where hepatitis A virus (HAV) infection is endemic. In Italy, routine medical practice does not require post-exposure prophylaxis of HAV with immune globulin (IG) and none of the study participants received IG. Serum samples were taken from household contacts (older than 1 year and younger than 40 years) of sporadic HAV infection index cases at enrollment, at 14 days and at 45 days. Those contacts negative for IgG and IgM anti-HAV at enrollment were considered susceptible. Susceptible
| Pediatrics, Naval Medical Center, Portsmouth, VA |
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