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Hepatitis A Risk in Travelers
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm , Centrum för klinisk forskning i D län (CKFD).
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2009 (English)In: Journal of Travel Medicine, ISSN 1195-1982, E-ISSN 1708-8305, Vol. 16, no 4, 233-238 p.Article in journal (Refereed) Published
Abstract [en]

Background Traveling to highly endemic areas for hepatitis A is increasing while the immunization level in travelers has been shown to be low in the countries studied. Methods In this population-based study, we have estimated the incidence rate of travel-related hepatitis A during 1997 to 2005 by use of the Swedish notification system of communicable diseases and an ongoing national database on travel patterns. We have also acquired airport-based immunization data from 2007. Results During the study period, 636 cases of travel-related hepatitis A were notified. Traveling to East Africa was associated with the highest incidence rate (14.1 cases/100,000 person months), followed by the Middle East (5.8/100,000 person months), and India with neighboring countries (5.6/100,000 person months). Visiting Friends and Relatives (VFR) travelers represented 83, 91, and 70% of the cases to these three regions. By age-group, the highest incidence was found in children 0 to 14 years (3.1/100,000 travelers) where 88% of the cases were VFR travelers. Incidence rate in unprotected travelers to East Asia, North Africa, and the Middle East was 2, 12, and 18 cases/100,000 person months, respectively. In 2007, 79% of the travelers were immunized against hepatitis A. Conclusions We conclude that travelers, and especially children, who are VFR in endemic areas constitute a high-risk group for acquiring hepatitis A infection, while the risk for unprotected tourists to East Asia is low.

Place, publisher, year, edition, pages
2009. Vol. 16, no 4, 233-238 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-148510DOI: 10.1111/j.1708-8305.2009.00307.xISI: 000268300400002OAI: oai:DiVA.org:uu-148510DiVA: diva2:402286
Available from: 2011-03-07 Created: 2011-03-07 Last updated: 2011-03-07Bibliographically approved

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