2026-04-29T12:24:15Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/143962025-06-23T16:22:46Zcom_20.500.12105_2052com_20.500.12105_2051col_20.500.12105_19608

00925njm 22002777a 4500 dc Gossner, Céline M author Fournet, Nelly author Frank, Christina author Fernandez Martinez, Beatriz author Del Manso, Martina author Gomes Dias, Joana author de Valk, Henriette author 2022-01 Background: Dengue is a disease with major impacts on public health in tropical and subtropical countries. In Europe, in the past decade, few autochthonous outbreaks were described. Aim: We aimed to identify factors associated with frequency of dengue virus infection among European travellers and at assessing how surveillance data could support preparedness against autochthonous outbreaks within Europe. Methods: We performed a descriptive analysis of travel-related dengue cases reported by European countries from 2015 through 2019. Using flight passenger data, we calculated travellers' infection rates (TIR). We investigated the following associations: (i) between TIR and incidence rate in selected countries of infection and (ii) between number of travel-related cases and occurrence of autochthonous outbreaks within Europe. Results: There were 11,478 travel-related dengue cases and the TIR was 2.8 cases per 100,000 travellers. Most cases were infected in Asia (71%), predominantly in south-eastern Asia. The TIR was highest among travellers returning from Asia (6.1/100,000). There was an association between the incidence rate in the country of infection and the TIR but no association between the number of travel-related cases and occurrence of autochthonous outbreaks in Europe. Conclusions: The likelihood of infection in travellers is a function of the ongoing epidemiological situation in the country of exposure. The number of travel-related cases alone is not sufficient to estimate the likelihood of autochthonous outbreaks where vectors are present in Europe. Additional contributing factors such as adequate vectorial capacity and suitable environmental conditions are required. Euro Surveill. 2022 Jan;27(2):2001937. 10.2807/1560-7917.ES.2022.27.2.2001937 1560-7917 Euro Surveillance: bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin 35027102 http://hdl.handle.net/20.500.12105/14396 Europe Dengue Outbreak Surveillance Travel Travellers Vector-borne disease Dengue virus infections among European travellers, 2015 to 2019