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Table 3 Geographic distribution of sequence types of C. burnetii

From: Estimated herd prevalence and sequence types of Coxiella burnetii in bulk tank milk samples from commercial dairies in Indiana

Region ST20 ST8 ST not identified % ST identified ST20 estimated prevalence 95 % C.I.
Northern 50 1 78b 60.5 % 93.0 % 90.7–99.9 %
Central 10a 1a 24 50.0 % 90.9 %a 62.7–99.6 %
Southern 11 0 12 47.8 % 100 % 76.2–100 %
Total 71a 2a 114 64.0 % 97.3 %a 91.2–99.5 %
  1. aIndicates that the farm with both ST20 and ST8 was not included in these calculations
  2. bIncludes a sample from Lake County that was not identified as positive, but demonstrated a CT greater than the 36.5 cutoff value