Combined Sewer Systems and the Potential for Vector-Borne Diseases in Georgia
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Combined sewer systems treat and dispose of water from combined waste and storm water sources. During times of heavy rainfall, minimally treated water is released into associated streams adding organically polluted waters to the stream system. Culex quinquefasciatus, the primary West Nile virus vector in Georgia, thrives in organically-polluted waters. Surveillance data suggest that the presence of combined sewer systems should be considered a risk factor for West Nile virus infection in humans.