TABLE 7.

Comparison of epidemiologic concordance between PFGE and MLST for the selected strains analyzed in the present studya

Subtyping methodEpidemiologic concordance between the two methods for the following Salmonella serovar:
EnteritidisTyphimuriumNewportHeidelbergI 4,[5],12:i:−SaintpaulMontevideoMuenchen
MLST0.941.001.000.881.001.001.000.39
PFGEb0.910.910.931.001.001.000.870.92
  • a Values for epidemiologic concordance were calculated based on isolates with cluster codes identified by PulseNet.

  • b The above values for epidemiologic concordance are biased against PFGE, because in some cases outbreaks that contained strains with variations in PFGE patterns (had poor epidemiologic concordance by PFGE) were deliberately selected in the present study.