Journal article
Seasonality, annual trends, and characteristics of dengue among ill returned travelers, 1997-2006
Eli Schwartz, Leisa H Weld, Annelies Wilder-Smith, Frank von Sonnenburg, Jay S Keystone, Kevin C Kain, Joseph Torresi, David O Freedman
EMERGING INFECTIOUS DISEASES | CENTERS DISEASE CONTROL & PREVENTION | Published : 2008
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 pret..
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