Kathleen A. Stigi
, J. Kathryn MacDonald, Anthony A. Tellez-Marfin, and Kathryn H. Lofy
Figure 2. Routine clinical laboratory practice to detect Shiga toxin (Stx)–producing Escherichia coli (STEC) by proportion of laboratories (A) and proportion of annually processed stool specimens (B), Washington, USA, 2010. *One laboratory reported use of neither method but represented <0.02% of annually processed specimens.