The United States and Canada as a coupled epidemiological system: an example from hepatitis A.

ABSTRACT:

Background

Hepatitis A (HA) is a low-incidence, non-endemic disease in Canada and the United States (US). However, a large difference in HA incidence between Canada and HA-endemic countries has made travel an important contributor to hepatitis A prevalence in Canada. There is also a (smaller) incidence differential between Canada and the US. Although the US has only moderately higher HA incidence, the volume of travel by Canadians to the US is many times higher than travel volume to endemic countries. Hence, travel to the US may constitute a source of low to moderate risk for Canadian travelers. To our knowledge, travel to the US has never been included as a potential risk factor for HA infection in Canadian epidemiologic analyses. The objective of this study was to use dynamic mod

SUBMITTER: Amariei R 

PROVIDER: S-EPMC2292190 | biostudies-literature | 2008 Feb

REPOSITORIES: biostudies-literature