UZH-Logo

Maintenance Infos

Seasonality, annual trends, and characteristics of dengue among ill returned travelers, 1997-2006


Schwartz, E; Weld, L H; Wilder-Smith, A; von Sonnenburg, F; Keystone, J S; Kain, K C; Torresi, J; Freedman, D O (2008). Seasonality, annual trends, and characteristics of dengue among ill returned travelers, 1997-2006. Emerging Infectious Diseases, 14(7):1081-1088.

Abstract

We examined seasonality and annual trends for dengue cases among 522 returned travelers reported to the international GeoSentinel Surveillance Network. Dengue cases showed region-specific peaks for Southeast Asia (June, September), South Central Asia (October), South America (March), and the Caribbean (August, October). Travel-related dengue exhibited annual oscillations with several epidemics occurring during the study period. In Southeast Asia, annual proportionate morbidity increased from 50 dengue cases per 1,000 ill returned travelers in nonepidemic years to an average of 159 cases per 1,000 travelers during epidemic years. Dengue can thus be added to the list of diseases for which pretravel advice should include information on relative risk according to season. Also, dengue cases detected at atypical times in sentinel travelers may inform the international community of the onset of epidemic activity in specific areas.

Abstract

We examined seasonality and annual trends for dengue cases among 522 returned travelers reported to the international GeoSentinel Surveillance Network. Dengue cases showed region-specific peaks for Southeast Asia (June, September), South Central Asia (October), South America (March), and the Caribbean (August, October). Travel-related dengue exhibited annual oscillations with several epidemics occurring during the study period. In Southeast Asia, annual proportionate morbidity increased from 50 dengue cases per 1,000 ill returned travelers in nonepidemic years to an average of 159 cases per 1,000 travelers during epidemic years. Dengue can thus be added to the list of diseases for which pretravel advice should include information on relative risk according to season. Also, dengue cases detected at atypical times in sentinel travelers may inform the international community of the onset of epidemic activity in specific areas.

Citations

81 citations in Web of Science®
100 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

139 downloads since deposited on 16 Mar 2009
41 downloads since 12 months
Detailed statistics

Additional indexing

Contributors:GeoSentinel Surveillance Network
Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Epidemiology, Biostatistics and Prevention Institute (EBPI)
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2008
Deposited On:16 Mar 2009 12:51
Last Modified:05 Apr 2016 13:05
Publisher:National Center for Infectious Diseases
ISSN:1080-6040
Publisher DOI:https://doi.org/10.3201/eid1407.071412
PubMed ID:18598629

Download

[img]
Preview
Filetype: PDF
Size: 1MB
View at publisher

TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.

Author Collaborations