Table 2

Specimens with polymicrobial identifications generated by the Biotyper MALDI-TOF system

Mixed culture identified by routine methodsBiotyperVitek MS IVD (confidence %)
Top match (score)Other species in top 10 matches list with scores of >1.7 (score)
Escherichia coli + Klebsiella pneumoniaeEscherichia coli (2.33)Klebsiella pneumoniae (2.07)Escherichia coli (99.9)
Escherichia coli + Klebsiella pneumoniaeEscherichia coli (2.32)Klebsiella pneumoniae (2.20)Escherichia coli (99.9)
Escherichia coli + Klebsiella pneumoniaeKlebsiella pneumoniae (2.27)Escherichia coli (2.13)Klebsiella pneumoniae (99.9)
Klebsiella pneumoniae + Enterococcus faecalisKlebsiella pneumoniae (2.23)Enterococcus faecalis (1.91)Klebsiella pneumoniae (99.9)
Acinetobacter baumannii + Staphylococcus epidermidisAcinetobacter baumannii (1.97)Staphylococcus epidermidis (1.76)Acinetobacter baumannii complex (99.9)