Fig. 2

Schematic structure of the lukSF-PV sequence variants detected among 28 PVL-positive S. aureus strains in this study compared to the lukSF-PV sequence of USA300 as the reference strain. Red horizontal line indicates the lukSF-PV sequence of USA300 strain. Short vertical lines on the colored lines indicate the positions of sites at which the haplotype differs from that of USA300. Numbers to the left of the horizontal lines indicate the frequency with which the haplotype (R, H1, and H2) was observed. At right, the haplotypes are bracketed according to how they are grouped into haplotype groups