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Table 3 Rates of antimicrobial resistance among gram-positive bacteria most frequently isolated from patients with BSIs

From: Epidemiology and microbiology of Gram-positive bloodstream infections in a tertiary-care hospital in Beijing, China: a 6-year retrospective study

Microbiology

Antimicrobial drug nri/nrt(%resistant)

        

Penicillin

Ampicillin

Gentamicin

Erythomycin

Ciprofloxacin

Clindamycin

Linezolid

Vancomycin

Tetracycline

staphylococcus

 Staphylococcus aureus

96.2%(153/159)

40.9%(65/159)

32.7%(52/159)

57.9%(92/159)

34.6%(55/159)

51.6%(82/159)

30.8%(32/104)

 CNS

96.4%(429/445)

74.4%(331/445)

20.4%(91/445)

85.6%(381/445)

47.0%(209/445)

69.2%(308/445

*

 staphylococcus epidermidis

96.7%(731/756)

88.0%(665/756)

10.2%(77/756)

85.1%(643/756)

56.1%(424/756)

45.2%(342/756)

0.13%(1/756)

2.2%(15/685)

 MRSA

100%(68/68)

100%(68/68)

47.1%(32/68)

75.0%(51/68)

86.8%(59/68)

75.0%(51/68)

38.2%(26/68)

 Staphylococcus hominis

91.0%(832/914)

74.4%(680/914)

2.7%(24/914)

91.2%(834/914)

52.6%(481/914)

68.3%(624/914)

42.8%(345/806)

 Staphylococcus haemolyticus

96.0%(117/122)

94.3%(115/122)

72.1%(88/122)

95.1%(116/122)

84.4%(103/122)

52.5%(64/122)

32.0%(39/122)

enterococcus

 E.faecalis

9.1%(12/132)

11.4%(15/132)

31.1%(41/132)

53.4%(31/58)

35.6%(47/132)

*

3.8%(5/132)

59.5%(47/79)

 E.faecium

92.5%(272/294)

91.5%(269/294)

70.4%(207/294)

74.3%(139/187)

90.1%(265/294)

*

3.1%(9/294)

4.1%(12/294)

43.8%(89/203)

Streptococcus

 Viri-dans streptococcus

0%(0/32)

0%(0/48)

*

70.4%(23/24)

*

0%(0/24)

0%(0/25)

0%(0/25)

*

 Streptococcus pneumonia

30%(3/10)

80%(8/10)

*

90%(9/10)

0%(0/3)

100%(1/1)

0%(0/10)

0%(0/10)

*

  1. nri number of resistant isolates, nrt number of isolates tested
  2. -: without resistant; *: without test