Document Detail


Modeling the spatial distribution of crimean-congo hemorrhagic fever outbreaks in Turkey.
MedLine Citation:
PMID:  18047397     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The more than 1100 human cases of Crimean-Congo Hemorrhagic Fever (CCHF) reported in a continuing series of outbreaks that started in 2003 in Turkey constitute the largest epidemic of the disease since CCHF was first recognized in 1944. The spatial distribution of CCHF case reporting rates in Turkey was studied to look for clusters of disease. We applied the spatial scan analysis to test the hypothesis of whether there were areas with a higher than expected number of CCHF cases. The analysis was conducted through windows of 10, 20, 40 and 80 km in diameter[SR1] to determine whether clustering of cases was dependent on the size of the scanning window. At the largest window size, consistent patterns of significantly higher than expected numbers of CCHF cases were found in a total of 40 administrative districts. A predictive model to map the habitat suitability for the vector tick was developed from satellite-based climate data and high-resolution features of the vegetation from Landsat images covering the whole country. It was found that areas of higher risk (higher CCHF reporting) were correlated (p<0.05) with zones of high climate suitability for the tick together with a high rate of fragmentation of agricultural land interspersed between forest and shrub-type vegetation.
Authors:
Agustin Estrada-Peña; Zati Zatansever; Aysen Gargili; Munir Aktas; Ramazan Uzun; Onder Ergonul; Frans Jongejan
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vector borne and zoonotic diseases (Larchmont, N.Y.)     Volume:  7     ISSN:  1530-3667     ISO Abbreviation:  Vector Borne Zoonotic Dis.     Publication Date:  2007  
Date Detail:
Created Date:  2008-01-03     Completed Date:  2008-11-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100965525     Medline TA:  Vector Borne Zoonotic Dis     Country:  United States    
Other Details:
Languages:  eng     Pagination:  667-78     Citation Subset:  IM    
Affiliation:
Department of Parasitology, Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain. aestrada@unizar.es
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MeSH Terms
Descriptor/Qualifier:
Animals
Arthropod Vectors / physiology*,  virology
Disease Outbreaks*
Ecosystem
Hemorrhagic Fever Virus, Crimean-Congo / physiology*
Hemorrhagic Fever, Crimean / epidemiology*
Humans
Incidence
Ixodidae / physiology*,  virology
Models, Statistical
Risk Factors
Turkey / epidemiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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