Table 2 Epidemiology and virulence profiles of Klebsiella pneumoniae isolates from CSF of post-craniotomy and primary meningitis.

From: Klebsiella pneumoniae Isolates from Meningitis: Epidemiology, Virulence and Antibiotic Resistance

CSF Strains

PFGE

MLST

ESBL

AmpC

Virulence factors

LD50 (log)

Bacterial size (μm)

HV (mm)

Capsule K

rmpA

rmpA2

c-rmpA

Kfu

allS

aerobactin

SR

Post-craniotomy meningitis (n = 13)

KP-004a

A

17

CMY-2

1.11 ± 0.21

<0.5

x

G2

>6.50

KP1050b

O

107

SHV-5

1.42 ± 0.16

<0.5

x

+

G6

>6.84

KP1051b

H1

17

SHV-5

1.44 ± 0.11

<0.5

x

G2

>6.72

KP1052b

N1

15

SHV-5

DHA-1

1.72 ± 0.07

<0.5

x

G6

>6.42

KP1053b

G

54

SHV-5

1.28 ± 0.15

<0.5

x

G6

>6.55

KP1054b

I1

86

SHV-5

2.98 ± 0.41

<0.5

2

+

+

+

G5

>6.88

KP-042c

unidentified

185

DHA-1

1.31 ± 0.18

<0.5

x

G4

>6.52

KP-023c

D

undefined

TEM-1B

CMY-2

0.92 ± 0.16

<0.5

x

+

G3

>6.36

KP-201c

E2

65

SHV-5

4.62 ± 0.65

>2

2

+

+

+

G6

4.13

KP-001a

J1

373

4.66 ± 0.66

>2

2

+

+

G3

5.83

KP-007a

S

661

1.04 ± 0.08

<0.5

x

G2

>6.84

KP-232c

E1

65

3.95 ± 0.46

>2

2

+

+

+

G5

5.05

KP-960b

N2

15

1.27 ± 0.17

<0.5

5

+

G6

>6.71

Primary meningitis (n  = 20)

KP-002a

C4

23

2.42 ± 0.33

>2

1

+

+

+

+

G5

4.83

KP-003a

C5

23

10.73 ± 1.11

>2

1

+

+

+

+

+

G6

4.50

KP-005a

M

268

7.24 ± 0.76

>2

20

+

+

+

G5

>6.49

KP-006a

Q

65

3.67 ± 0.42

0.5–1

2

+

+

+

G6

4.41

KP-064c

R1

218

3.74 ± 0.49

>2

57

+

+

+

G2

>6.45

KP-088c

P2

373

4.77 ± 0.46

>2

2

+

+

+

G6

1.59

KP-477c

C3

23

7.75 ± 1.37

>2

1

+

+

+

+

+

+

G5

4.41

KP-600c

C1

23

2.33 ± 0.24

<0.5

x

G2

>6.45

KP-777c

C2

23*

5.30 ± 0.71

>2

1

+

+

+

+

+

+

G6

4.98

KP-164c

R1

218

3.04 ± 0.48

>2

57

+

+

G3

>6.15

KP-552b

B

23

7.05 ± 0.72

>2

1

+

+

+

+

+

G5

5.35

KP-780b

P1

373

6.92 ± 0.53

>2

2

+

+

+

G6

>6.44

KP-783b

P1

373

3.06 ± 0.43

>2

2

+

+

+

G6

5.4

KP-957b

K

65

4.56 ± 0.56

>2

2

+

+

+

G6

3.94

KP-958b

I2

86*

3.45 ± 0.49

>2

2

+

+

+

G5

1.56

KP-959b

unidentified

1049

4.71 ± 0.89

>2

5

+

+

+

-

+

G6

>6.50

KP-961b

J2

373

4.58 ± 0.39

>2

2

+

+

+

G6

3.77

KP-962b

F

1544

5.09 ± 1.06

0.5–1

20

+

+

+

+

G6

5.14

KP-963b

H2

29

4.51 ± 0.53

>2

54

+

+

+

G6

5.41

KP-966b

L

592

2.75 ± 0.45

0.5–1

57

+

+

G2

>6.59

  1. NOTE. CSF, cerebrospinal fluid; PFGE, Pulsed-field gel electrophoresis; MLST, multilocus sequence typing (*one nucleotide change); SR, serum resistance (G: grade); ESBL, extended-spectrum β-lactamase; HV, hypermucoviscosity phenotype. x, unidentified, non-virulent capsule K types (i.e., not for K1, K2, K5, K20, K54, K57 types). aFrom Taipei Veterans General Hospital in Taipei City, northern Taiwan, 2003–2006 (n = 7); bfrom Chi-Mei Medical Center in Tainan City, southern Taiwan, 2005–2013 (n = 16); cfrom National Cheng-Kung University Hospital in Tainan City, southern Taiwan, 1999–2007 (n = 10).