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Table 2 Bacterial identification results and sensitivity of detection of the rapid diagnosis strategy

From: Evaluation of Rapid Sepsityper® protocol and specific MBT-Sepsityper module (Bruker Daltonics) for the rapid diagnosis of bacteremia and fungemia by MALDI-TOF-MS

Bacterial species

Sensitivity (%)

Bacterial species

Sensitivity (%)

Gram positive bacteria

Gram negative bacteria

Staphylococcus (n = 98)

Enterobacterales (n = 109)

S. aureus

30/37 (81.1%)

E. coli

72/77 (93.5%)

CoNS

K. pneumoniae

6/7 (85.7%)

S. epidermidis

28/43 (65.1%)

P. mirabilis

6/7 (85.7%)

S. hominis

8/9 (88.9%)

E. complex cloacae

5/5 (100%)

S. haemolyticus

2/3 (66.7%)

C. freundii

2/2 (100%)

S. capitis

2/2 (100%)

C. koseri

2/2 (100%)

S. lugdunensis

1/1 (100%)

H. alvei

2/2 (100%)

S. pasteuri

0/1 (0%)

S. marcescens

1/2 (50%)

S. caprae

0/1 (0%)

K. variicola

0/2 (0%)

S. pettenkoferi

0/1 (0%)

K. oxytoca

0/1 (0%)

Streptococcus (n = 32)

Salmonella sp

1/1 (100%)

S. pneumoniae

1/6 (16.7%)

P. agglomerans

0/1 (0%)

S. gallolytcus

3/6 (50%)

Others (n = 24)

S. mitis/oralis

3/5 (60%)

P. aeruginosa

7/8 (87.5%)

S. pyogenes

3/4 (75%)

H. influenzae

0/2 (0%)

S. agalactiae

2/2 (100%)

F. nucleatum

0/2 (0%)

S. milleri group

2/3 (66.7%)

B. fragilis

0/2 (0%)

S. dysgalactiae

2/2 (100%)

R. radiobacter

1/1 (100%)

S. gordonii

0/2 (0%)

L. trevisani

0/1 (0%)

S. parasanguinis

0/1 (0%)

P. heparinolytica

0/1 (0%)

S. sanguinis

0/1 (0%)

B. uniformis

0/1 (0%)

Enterococcus (n = 11)

C. jejuni

0/1 (0%)

E. faecalis

5/6 (83.3%)

C. fetus

0/1 (0%)

E. faecium

4/5 (80%)

O. anthropi

0/1 (0%)

Others (n = 12)

A. caviae

0/1 (0%)

C. acnes

1/2 (50%)

A. ursingii

0/1 (0%)

F. magna

1/1 (100%)

R. mucosa

0/1 (0%)

M. luteus

1/1 (100%)

  

L. rhamnosus

1/1 (100%)

  

R. dentocariosa

0/1 (0%)

  

L. casei

0/1 (0%)

  

P. micra

0/1 (0%)

  

C. ramosum

0/1 (0%)

  

C. minutissimum

0/1 (0%)

  

G. aichiensis

0/1 (0%)

  

Microbacterium sp

0/1 (0%)

  

Total

100/153 (65.4%)

 

105/133 (78.9%)

  1. Bacterial species identified by the rapid diagnosis strategy (RS ± FA) in Gram-positive and Gram-negative monomicrobial positive blood culture