TABLE 2

Serotypes, cluster analysis, and score values of MALDI-TOF MS spectra of 39 clinical isolates of L. monocytogenes

SerotypeNo. of isolatesClusteraNo. of isolates with indicated score values by MALDI-TOF Bruker Biotyper
<1.71.7–1.999≥2.0
1/2a10A02 (1.889–1.902)8 (2.058–2.321)
1/2b17B0017 (2.045–2.375)
4b12B02 (1.82–1.98)10 (2.069–2.437)
  • a See Fig. 2 for definition of clusters A and B based on cluster analysis by spectra generated by MALDI-TOF Bruker Biotyper.