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United States Department of Agriculture

Agricultural Research Service

West Nile Virus
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West Nile Virus


    Mosquito                                                                               2004 by County


  • West Nile virus (WNV) first isolated in 1937
  • Mosquito become infected by feeding on infected birds
  • WNV is transmitted to humans by mosquitoes
  • Jan.  - Nov. 2005, State-wide:  70 Pos. Human & 28 Pos. Bird cases


Future WNV Program In The Mississippi Delta

  • Survey mosquito breeding populations for West Nile Virus to identify sites with infected mosquitoes 
  • Develop biological control agents for controlling mosquitoes                   transmitting WNV 
  • Mosquito control with biological control agents produced &                       developed at NBCL 



WNV Program Goal

  • Improve formulations for biological control agents targeting mosquitoes transmitting WNV



Last Modified: 8/13/2016
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