Introduction of Aedes albopictus into a La Crosse Virus-Enzootic Site in Illinois
Author Information
Author(s): Uriel Kitron, Jack Swanson, Michael Crandell, Patrick J. Sullivan, Justin Anderson, Robert Garro, Linn D. Haramis, Paul R. Grimstad
Primary Institution: University of Illinois
Hypothesis
The introduction of Aedes albopictus mosquitoes may impact the transmission dynamics of La Crosse virus in Illinois.
Conclusion
The presence of Aedes albopictus mosquitoes and a La Crosse virus seropositive chipmunk indicates a potential risk for La Crosse virus transmission in urban areas of Illinois.
Supporting Evidence
- Aedes albopictus was found in Peoria, Illinois, a known area for La Crosse virus transmission.
- One chipmunk tested positive for antibodies against La Crosse virus within 150 m of mosquito collection sites.
- Larvae were collected from tires and artificial containers, indicating a breeding site for Aedes albopictus.
Takeaway
Scientists found a new type of mosquito in Illinois that could spread a virus that makes kids sick, and they also found a chipmunk that had been affected by that virus.
Methodology
Mosquito larvae and adults were collected from tires and artificial containers, and chipmunks were trapped to test for antibodies against La Crosse virus.
Limitations
No LAC virus was isolated from field-collected mosquitoes, and the study was limited to a specific geographic area.
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