Journal
SPATIAL AND SPATIO-TEMPORAL EPIDEMIOLOGY
Volume 3, Issue 3, Pages 173-183Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.sste.2012.01.002
Keywords
Spatial epidemiology; Avian influenza; H5N1
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Funding
- FIC NIH HHS [R01 TW007869-04, R01 TW007869] Funding Source: Medline
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Highly pathogenic avian influenza virus (HPAIV) H5N1 continues to impact on smallholder livelihoods, to constrain development of the poultry production sector, and to cause occasional human fatalities. HPAI H5N1 outbreaks have occurred in a variety of ecological systems with economic, agricultural and environmental differences. This review aimed to identify common risk factors amongst spatial modelling studies conducted in these different agro-ecological systems, and to identify gaps in our understanding of the disease's spatial epidemiology. Three types of variables with similar statistical association with HPAI H5N1 presence across studies and regions were identified: domestic waterfowl, several anthropogenic variables (human population density, distance to roads) and indicators of water presence. Variables on socio-economic conditions, poultry trade, wild bird distribution and movements were comparatively rarely considered. Few studies have analysed the HPAI H5N1 distribution in countries such as Egypt and Indonesia, where HPAIV H5N1 continues to circulate extensively. (C) 2012 Elsevier Ltd. All rights reserved.
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