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Graham Hall 123
1200 S. Jay St.
Aberdeen, S.D. 57401
Phone: 605-626-2552
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NSU students, faculty present research
Dr. Alyssa Anderson in a green shirtABERDEEN, S.D. – Northern State University students and faculty presented their research at the recent Joint Aquatic Sciences Meeting in Portland, Ore.
NSU biology faculty members Dr. Alyssa Anderson and Dr. Jon Mitchell, along with students Misti Ward and Kasey Rundquist, presented a poster on their mosquito surveillance work. 
According to the group’s research project abstract, the prevalence of West Nile virus, a serious mosquito-borne zoonotic disease, is particularly high in South Dakota, with the highest incidence in Brown County. In past years, monitoring of mosquito populations in Brown County was restricted to the Aberdeen city limits. The group reported results of the first surveillance activities outside of Aberdeen, where control is limited.
 Dr. Jon Mitchell in a red polo shirt
Seven locations were surveyed; mosquitoes were collected four to five days a week from June to September. Individuals were identified to species, and Culex tarsalis were tested for WNV. Minimum infection rates (MIR) were then calculated. All sites had MIRs greater than 0.6, indicating the need for increased vigilance and testing. For more information, see the abstract.
Also at the Portland meeting, Anderson presented a talk in collaboration with colleagues at the University of Minnesota and the Minnesota Pollution Control Agency, describing the phenomenon of winter-emergence of certain aquatic midges. For more information, see the abstract.  
Photos: Anderson (top), Mitchell