Influenza-Like Illness in Travelers to the Developing World

The American Journal of Tropical Medicine and Hygiene
Stuart Wood For The Infectious Disease Clinical Research Program TravMil Study Group

Abstract

Travelers to developing regions are at risk for development of influenza-like illness (ILI). Little is known of traveler and trip characteristics associated with the development of ILI. TravMil is a prospective observational study, enrolling subjects presenting to six military travel clinics or predeployment-screening sites. We analyzed pre- and post-travel surveys from travelers visiting regions outside of the continental United States, Western or Northern Europe, Canada, Australia, or New Zealand between January 2010 and March 2016. Influenza-like illness was defined as a self-reported fever associated with either sore throat or cough. Trip and traveler characteristics were analyzed to determine risk factors for the development of ILI. Two thousand nine hundred and thirty-two trips were recorded (55% male, median age 45 years, 69% white, 51% on vacation, median travel duration 17 days). The 2,337 trips included the number of self-reported influenza vaccinations in the preceding 5 years (median 5). Eleven percent of the trips were complicated by an ILI lasting a median of 5 days; 70% and 17% of these reported upper and lower respiratory tract infection, respectively, and 12% reported both. On multivariate analysis, increased r...Continue Reading

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Citations

Feb 12, 2020·The American Journal of Tropical Medicine and Hygiene·Kathryn Lago For The Infectious Disease Clinical Research Program TravMil Study Group
Nov 30, 2019·Military Medicine·Tahaniyat LalaniDavid R Tribble

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