Impact of universal mass vaccination with monovalent inactivated hepatitis A vaccines – A systematic review
| Autor: | Anke L. Stuurman, Cinzia Marano, Eveline M. Bunge, Laurence De Moerlooze, Daniel Shouval |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Human Vaccines & Immunotherapeutics, Vol 13, Iss 3, Pp 724-736 (2017) |
| Druh dokumentu: | article |
| ISSN: | 2164-5515 2164-554X 21645515 |
| DOI: | 10.1080/21645515.2016.1242539 |
| Popis: | The WHO recommends integration of universal mass vaccination (UMV) against hepatitis A virus (HAV) in national immunization schedules for children aged ≥1 year, if justified on the basis of acute HAV incidence, declining endemicity from high to intermediate and cost-effectiveness. This recommendation has been implemented in several countries. Our aim was to assess the impact of UMV using monovalent inactivated hepatitis A vaccines on incidence and persistence of anti-HAV (IgG) antibodies in pediatric populations. We conducted a systematic review of literature published between 2000 and 2015 in PubMed, Cochrane Library, LILACS, IBECS identifying a total of 27 studies (Argentina, Belgium, China, Greece, Israel, Panama, the United States and Uruguay). All except one study showed a marked decline in the incidence of hepatitis A post introduction of UMV. The incidence in non-vaccinated age groups decreased as well, suggesting herd immunity but also rising susceptibility. Long-term anti-HAV antibody persistence was documented up to 17 y after a 2-dose primary vaccination. In conclusion, introduction of UMV in countries with intermediate endemicity for HAV infection led to a considerable decrease in the incidence of hepatitis A in vaccinated and in non-vaccinated age groups alike. |
| Databáze: | Directory of Open Access Journals |
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