Hepatitis A vaccine immune response 22 years after vaccination.
Abstract
In the United States, the incidence of hepatitis A virus (HAV) infection has been reduced through universal childhood vaccination. However, the duration of immunogenicity for the hepatitis A vaccine is not known. We report on the 22 year follow-up time point of a cohort of Alaska children who were randomized to three different vaccine schedules: A) 0, 1, and 2 months; B) 0, 1, and 6 months; and C) 0, 1, and 12 months. Among 46 participant available for follow-up, 40 (87%) maintained protective levels of anti-hepatitis A antibody. These results indicate that a supplemental booster dose is not yet necessary at or before the 22-year time point.
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A study of Alaska Natives demonstrated that seropositivity for hepatitis A persists for >20 years after completing 2-dose vaccination at age 12-21 months.
“A study of Alaska Natives demonstrated that seropositivity for hepatitis A persists for >20 years after completing 2-dose vaccination at age 12–21 months (1302).”
From Sexually Transmitted Infections Treatment Guidelines, 2021 (2021) · cites this paper as [1302]
Kinetic models of antibody decrease among adults indicate that protective levels persist for >40 years.
“Kinetic models of antibody decrease among adults indicate that protective levels persist for >40 years (1302–1304).”
From Sexually Transmitted Infections Treatment Guidelines, 2021 (2021) · cites this paper as [1302]
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- Authors
- Mosites, E., Gounder, P., Snowball, M., Morris, J., Spradling, P., Nelson, N., Bulkow, L., Bruce, M., & McMahon, B.
- Affiliations
- Centers for Disease Control and Prevention (US)
- Alaska Native Tribal Health Consortium (US)
- Corresponding author
- Mosites, Emily
- Venue
- Journal of Medical Virology
- Publisher
- Wiley
- Published
- 2018-05
- Volume
- 90
- Issue
- 8
- Pages
- 1418-1422
- ISSN
- 0146-6615 (ISSN-L)
- 1096-9071
- OpenAlex
- W2796842874
- Cited by
- 25
- References
- 21
- Citations by year
- 2025: 3 · 2024: 2 · 2023: 1 · 2022: 3 · 2021: 8 · 2020: 8
- FWCI
- 2.51
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Medical Virology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Hepatology › Hepatitis Viruses Studies and Epidemiology
- Health Sciences › Medicine › Epidemiology › Hepatitis B Virus Studies
- Health Sciences › Medicine › Infectious Diseases › Viral gastroenteritis research and epidemiology
- Keywords
- hepatitis A vaccine, long-term immunogenicity, booster vaccination, childhood immunization schedule, hepatitis A
- MeSH terms
- Adult, Alaska, Child, Child, Preschool, Female, Follow-Up Studies, Hepatitis A, Humans, Immunization Schedule, Male, Time Factors, Hepatitis A Vaccines, Hepatitis A virus, Hepatitis A Antibodies
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