FLY VECTORS MECHANICAL TRANSMISSION OF PATHOGENS - PowerPoint PPT Presentation

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FLY VECTORS MECHANICAL TRANSMISSION OF PATHOGENS

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AHS and Bluetongue AFRICA increasingly milder winters longer midge survival during year EUROPE Culicoides imicola in Africa is competent vector of AHS and BT viruses. – PowerPoint PPT presentation

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Title: FLY VECTORS MECHANICAL TRANSMISSION OF PATHOGENS


1
FLY VECTORS MECHANICAL TRANSMISSION OF PATHOGENS
flies take many meals for each egg batch, thus
rapid transmission on contaminated mouthparts
2
FLY VECTORS BIOLOGICAL TRANSMISSION OF PATHOGENS
3
FLY VECTORS FLIES COMPARED TO TICKS AS VECTORS
single tick
4
FLY VECTORS VERTEBRATES AND VECTORS AS RESERVOIRS
eg. bluetongue by Culicoides
5
FLY VECTORS AMPLIFICATION OF VIRUS
TRANSMISSION
eg. bluetongue by Culicoides
vector needs to survive well and feed often
reservoir host
disease host but insufficient
virus in vector refractory
host disease host
plenty virus in vector
6
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