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. 2021 Feb 12;87(5):e01922-20. doi: 10.1128/AEM.01922-20

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FIG 1 — Environmental sampling locations tested for the presence of Blastomyces dermatitidis DNA in Minnesota. The percentage of detectable B. dermatitidis DNA is indicated for each location. (A) Basal environmental sampling locations. Environmental samples were collected at randomly generated GPS coordinates at the designated regions in the Blastomyces-endemic Itasca (ITA-14 and ITA-17) and St. Louis (STL-14 and STL-17) counties, as well as in Lake (LSS-17) and Hennepin (HEN-14) counties. (B) Outbreak sampling locations. Environmental samples were collected at sites associated with human or animal blastomycosis cases within the previous year. Maps were generated using base map data from OpenStreetMap. (C) A trend toward a higher percentage of samples with detectable B. dermatitidis DNA is observed in outbreak environmental nonflooding samples compared to basal environmental samples. *, P = 0.017 using a t test with Welch’s correction for unequal variances.