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      Travel-related Dengue Virus Infection, the Netherlands, 2006–2007

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          Abstract

          To assess the incidence of and risk factors for clinical and subclinical dengue virus (DENV) infection, we prospectively studied 1,207 adult short-term travelers from the Netherlands to dengue-endemic areas. Participants donated blood samples for serologic testing before and after travel. Blood samples were tested for antibodies against DENV. Seroconversion occurred in 14 (1.2%) travelers at risk. The incidence rate was 14.6 per 1,000 person-months. The incidence rate was significantly higher for travel during the rainy months. Dengue-like illness occurred in 5 of the 14 travelers who seroconverted. Seroconversion was significantly related to fever, retro-orbital pain, myalgia, arthralgia, and skin rash. The risk for DENV infection for short-term travelers to dengue-endemic areas is substantial. The incidence rate for this study is comparable with that in 2 other serology-based prospective studies conducted in the 1990s.

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          Most cited references21

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          The global emergence/resurgence of arboviral diseases as public health problems.

          During the past 20 years there has been a dramatic resurgence or emergence of epidemic arboviral diseases affecting both humans and domestic animals. These epidemics have been caused primarily by viruses thought to be under control such as dengue, Japanese encephalitis, yellow fever, and Venezuelan equine encephalitis, or viruses that have expanded their geographic distribution such as West Nile and Rift Valley fever. Several of these viruses are presented as case studies to illustrate the changing epidemiology. The factors responsible for the dramatic resurgence of arboviral diseases in the waning years of the 20th century are discussed, as is the need for rebuilding the public health infrastructure to deal with epidemic vector-borne diseases in the 21st century.
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            Spectrum of disease and relation to place of exposure among ill returned travelers.

            Approximately 8 percent of travelers to the developing world require medical care during or after travel. Current understanding of morbidity profiles among ill returned travelers is based on limited data from the 1980s. Thirty GeoSentinel sites, which are specialized travel or tropical-medicine clinics on six continents, contributed clinician-based sentinel surveillance data for 17,353 ill returned travelers. We compared the frequency of occurrence of each diagnosis among travelers returning from six developing regions of the world. Significant regional differences in proportionate morbidity were detected in 16 of 21 broad syndromic categories. Among travelers presenting to GeoSentinel sites, systemic febrile illness without localizing findings occurred disproportionately among those returning from sub-Saharan Africa or Southeast Asia, acute diarrhea among those returning from south central Asia, and dermatologic problems among those returning from the Caribbean or Central or South America. With respect to specific diagnoses, malaria was one of the three most frequent causes of systemic febrile illness among travelers from every region, although travelers from every region except sub-Saharan Africa and Central America had confirmed or probable dengue more frequently than malaria. Among travelers returning from sub-Saharan Africa, rickettsial infection, primarily tick-borne spotted fever, occurred more frequently than typhoid or dengue. Travelers from all regions except Southeast Asia presented with parasite-induced diarrhea more often than with bacterial diarrhea. When patients present to specialized clinics after travel to the developing world, travel destinations are associated with the probability of the diagnosis of certain diseases. Diagnostic approaches and empiric therapies can be guided by these destination-specific differences. Copyright 2006 Massachusetts Medical Society.
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              Dengue in travelers.

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                Author and article information

                Journal
                Emerg Infect Dis
                Emerging Infect. Dis
                EID
                Emerging Infectious Diseases
                Centers for Disease Control and Prevention
                1080-6040
                1080-6059
                May 2011
                : 17
                : 5
                : 821-828
                Affiliations
                [1]Author affiliations: Public Health Service, Amsterdam, the Netherlands (G.G.G. Baaten, G.J.B. Sonder, J.A.P.C.M. Kint, A. van den Hoek);
                [2]Academic Medical Centre, Amsterdam (G.G.G. Baaten, G.J.B. Sonder, H.L. Zaaijer, T. van Gool, A. van den Hoek);
                [3]National Coordination Centre for Traveller’s Health Advice, Amsterdam (G.G.G. Baaten, G.J.B. Sonder)
                Author notes
                Address for correspondence: Gijs G.G. Baaten, Department of Infectious Diseases, Public Health Service (GGD) Amsterdam, PO Box 2200, 1000 CE Amsterdam, the Netherlands; email: gijsbaaten@ 123456hotmail.com
                Article
                10-1125
                10.3201/eid1705.101125
                3321765
                21529390
                5241f42f-3b2e-431a-aa51-6f427bd776cd
                History
                Categories
                Research

                Infectious disease & Microbiology
                prospective study,dengue,travelers,research,vector-borne infections,viruses,the netherlands,epidemiology,risk factors

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