Sentinel surveillance of imported dengue via travellers to Europe 2012 to 2014: TropNet data from the DengueTools Research Initiative.

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State: Public
Version: Final published version
Serval ID
serval:BIB_A5F08B49412A
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Sentinel surveillance of imported dengue via travellers to Europe 2012 to 2014: TropNet data from the DengueTools Research Initiative.
Journal
Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
Author(s)
Neumayr A., Muñoz J., Schunk M., Bottieau E., Cramer J., Calleri G., López-Vélez R., Angheben A., Zoller T., Visser L., Serre-Delcor N., Genton B., Castelli F., Van Esbroeck M., Matteelli A., Rochat L., Sulleiro E., Kurth F., Gobbi F., Norman F., Torta I., Clerinx J., Poluda D., Martinez M., Calvo-Cano A., Sanchez-Seco M.P., Wilder-Smith A., Hatz C., Franco L.
Working group(s)
for TropNet
ISSN
1560-7917 (Electronic)
ISSN-L
1025-496X
Publication state
Published
Issued date
05/01/2017
Peer-reviewed
Oui
Volume
22
Number
1
Pages
39-47
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
We describe the epidemiological pattern and genetic characteristics of 242 acute dengue infections imported to Europe by returning travellers from 2012 to 2014. The overall geographical pattern of imported dengue (South-east Asia > Americas > western Pacific region > Africa) remained stable compared with 1999 to 2010. We isolated the majority of dengue virus genotypes and epidemic lineages causing outbreaks and epidemics in Asia, America and Africa during the study period. Travellers acted as sentinels for four unusual dengue outbreaks (Madeira, 2012-13; Luanda, 2013; Dar es Salaam, 2014; Tokyo, 2014). We were able to characterise dengue viruses imported from regions where currently no virological surveillance data are available. Up to 36% of travellers infected with dengue while travelling returned during the acute phase of the infection (up to 7 days after symptom onset) or became symptomatic after returning to Europe, and 58% of the patients with acute dengue infection were viraemic when seeking medical care. Epidemiological and virological data from dengue-infected international travellers can add an important layer to global surveillance efforts. A considerable number of dengue-infected travellers are viraemic after arrival back home, which poses a risk for dengue introduction and autochthonous transmission in European regions where suitable mosquito vectors are prevalent.

Keywords
Africa/epidemiology, Americas/epidemiology, Asia, Southeastern/epidemiology, Dengue/diagnosis, Dengue/epidemiology, Dengue/transmission, Dengue Virus/genetics, Dengue Virus/isolation & purification, Disease Outbreaks, Europe/epidemiology, Genotype, Humans, Incidence, Phylogeny, Reverse Transcriptase Polymerase Chain Reaction/methods, Sentinel Surveillance, Travel, Travel Medicine/methods
Pubmed
Open Access
Yes
Create date
24/01/2017 19:45
Last modification date
20/08/2019 16:11
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