Tags

Type your tag names separated by a space and hit enter

Hepatitis A risk in travelers.
J Travel Med. 2009 Jul-Aug; 16(4):233-8.JT

Abstract

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.

Authors+Show Affiliations

Department of Medicine/Unit for Infectious Diseases, Solna, Karolinska Institute, Karolinska University Hospital, S-17176 Stockholm, Sweden. helena.hervius-askling@karolinska.seNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19674261

Citation

Askling, Helena H., et al. "Hepatitis a Risk in Travelers." Journal of Travel Medicine, vol. 16, no. 4, 2009, pp. 233-8.
Askling HH, Rombo L, Andersson Y, et al. Hepatitis A risk in travelers. J Travel Med. 2009;16(4):233-8.
Askling, H. H., Rombo, L., Andersson, Y., Martin, S., & Ekdahl, K. (2009). Hepatitis A risk in travelers. Journal of Travel Medicine, 16(4), 233-8. https://doi.org/10.1111/j.1708-8305.2009.00307.x
Askling HH, et al. Hepatitis a Risk in Travelers. J Travel Med. 2009 Jul-Aug;16(4):233-8. PubMed PMID: 19674261.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Hepatitis A risk in travelers. AU - Askling,Helena H, AU - Rombo,Lars, AU - Andersson,Yvonne, AU - Martin,Stephen, AU - Ekdahl,Karl, PY - 2009/8/14/entrez PY - 2009/8/14/pubmed PY - 2009/12/16/medline SP - 233 EP - 8 JF - Journal of travel medicine JO - J Travel Med VL - 16 IS - 4 N2 - 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. SN - 1708-8305 UR - https://www.unboundmedicine.com/medline/citation/19674261/Hepatitis_A_risk_in_travelers_ L2 - https://academic.oup.com/jtm/article-lookup/doi/10.1111/j.1708-8305.2009.00307.x DB - PRIME DP - Unbound Medicine ER -