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. 2009 Oct 28;9:229. doi: 10.1186/1471-2180-9-229

Figure 1.

Figure 1

Congo Red Agar screening of S. aureus isolates. CRA screening for S. aureus with a dry crystalline colony morphology, which was considered indicative for slime formation. (a) The black bar (not visible, 0%) represents MRSA (n = 72), the dark grey bar represents MSSA with MRSA associated MLST CCs (n = 75) and the light grey bar represents MSSA with MSSA associated MLST CCs (n = 81). Asterisks denote statistically significant difference P < 0.01 (a) and statistically significant difference of individual CCs versus all other associated MLST CCs (b) P < 0.01.