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Mean number of mosquitoes collections per trap overall years within six South Dakota regions: (A) Lincoln/Minnehaha counties, (B) Brookings county, (C) Brown county, (D) Beadle County, (E) Hughes County, (F) Fall River/Custer/Pennington/Meade counties. Data are expressed relative to each numbered week (Sunday through Saturday) in the year, with the week that contained January 1st designated as week 1.
