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              Open Access  
Copyright: The authors. This article is an open access 
article licensed under the terms of the Creative Commons Attribution License 
(http://creativecommons.org/licenses/by/2.0) which permits unrestricted use, 
distribution and reproduction in any medium, provided the work is properly 
cited. 
 
              
              
              Review (Published 
online :  14-10-2013) 
12. Disease alerts and forecasting of zoonotic 
diseases: an overview - D. P. Kshirsagar, C. V. Savalia, I. H. 
Kalyani, Rajeev Kumar and D. N. Nayak 
Veterinary World, 6(11): 889-896 
                
              doi: 
              10.14202/vetworld.2013.889-896 
                
              
              
          
 
              Abstract 
 
              Epidemiologists are adopting new 
              techniques by the use of Geographical Information System (GIS) to 
              study a variety of animal and zoonotic diseases. Associations 
              between satellite-derived environmental variables such as 
              temperature, humidity, land cover type and vector density is used 
              for disease prediction. Early warning systems rapidly detect the 
              introduction or sudden increase in incidence of any disease of 
              livestock which has the potential to develop into epidemic 
              proportions and/or cause serious socioeconomic consequences or 
              public health concerns. Early warning activities, mainly based on 
              disease surveillance, reporting, and epidemiological analysis, are 
              supported by information systems that enable integration, analysis 
              and sharing of animal health data combined with relevant layers of 
              information such as socioeconomic, production and climatic data. 
              The convergence of factors such as the availability of 
              multi-temporal satellite data and georeferenced epidemiological 
              data, collaboration between scientists, biologists and the 
              availability of sophisticated, statistical GIS creates a fertile 
              research environment. In this paper, we review the Global Early 
              Warning System (GLEWS) that formally brings together human and 
              veterinary public health systems and application of environmental 
              data for study of diseases like avian influenza and Rift valley 
              fever which offers the capability to demonstrate 
              vector-environment relationships and potentially forecast the risk 
              of disease outbreaks or epidemics. An emphasis is also given on 
              components of early warning system and its use for forecasting of 
              animal and zoonotic diseases in India.Key words: FAO, forecasting, global early warning system, 
              geographical information system, OIE, WHO.
 
 
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