Document Detail

Spatiotemporal distributions of reported cases of the avian influenza H5N1 (bird flu) in Southern China in early 2004.
MedLine Citation:
PMID:  17274286     Owner:  NLM     Status:  MEDLINE    
This study investigates spatiotemporal distributions of reported cases of the avian influenza H5N1 (bird flu) in Southern China in early 2004. Forty-nine cases of the avian influenza H5N1 covering a 6-week period (January 19, 2004, through March 9, 2004) were compiled from the Chinese Ministry of Agriculture and the World Health Organization. Geographic information systems (GIS) techniques combined with statistical techniques were used to analyze the spatiotemporal variation of reported cases of avian influenza. Using Oden's direction method, we also explored the spatiotemporal interaction of individual-level avian influenza cases during the study duration. The peak period (temporal clustering) for the epidemiological avian influenza outbreak occurred between the third and fourth weeks. Although we observed a major northeast-southwest distribution of the avian influenza H5N1 cases, there was no significant spatiotemporal association in average "direction of advance" of these cases. The directional finding is very consistent with the major migratory bird routes in East Asia, but owing to weak surveillance and reporting systems in the region, the study findings warrant further evaluation.
Tonny J Oyana; Dajun Dai; Kara E Scott
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Avian diseases     Volume:  50     ISSN:  0005-2086     ISO Abbreviation:  Avian Dis.     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2007-02-05     Completed Date:  2007-03-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370617     Medline TA:  Avian Dis     Country:  United States    
Other Details:
Languages:  eng     Pagination:  508-15     Citation Subset:  IM    
Department of Geography & Environmental Resource, Southern Illinois University, 1000 Faner Drive, MC 4514, Carbondale, IL 62901-4514, USA.
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MeSH Terms
Birds / virology*
China / epidemiology
Influenza A Virus, H5N1 Subtype / isolation & purification*
Influenza in Birds / epidemiology*,  virology*
Time Factors

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

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