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Table 4 Bacteria isolated.

From: Characteristics and outcomes of culture-negative versus culture-positive severe sepsis

Bacteria isolateda No. of patients (% of entire cohort of patients)
  All cultures Bacteremia
Gram-positive 257 (25.7) 120 (12.0)
   Methicillin-sensitive Staphylococcus aureus 82 (8.2) 39 (39.0)
   Methicillin-resistant Staphylococcus aureus 59 (5.9) 10 (1.0)
   Streptococcus pneumoniae 67 (6.7) 39 (3.9)
   Other Streptococcus species 19 (1.9) 15 (1.5)
   Enterococcus 28 (2.8) 16 (1.6)
   Others 9 (0.9) 5 (0.5)
Gram-negative 390 (39.0) 213 (21.3)
   Klebsiella pneumoniae 131 (13.1) 73 (7.3)
   Escherichia coli 117 (11.7) 80 (8.0)
   Pseudomonas aeruginosa 62 (6.2) 15 (1.5)
   Acinetobacter baumannii 35 (3.5) 10 (1.0)
   Bulkholderia pseudomallei 13 (1.3) 10 (1.0)
   Enterobacter cloacae 10 (1.0) 4 (0.4)
   Hemophilus influenzae 9 (0.9) 1 (0.1)
    Salmonella species 7 (0.7) 3 (0.3)
    Citrobacter species 6 (0.6) 3 (0.3)
   Stenotrophomonas maltophilia 6 (0.6) 1 (0.1)
    Proteus species 5 (0.5) 5 (0.5)
   Bacteroides fragilis 5 (0.5) 2 (0.2)
   Others 23 (2.3) 14 (1.4)
  1. aMore than one species of bacteria isolated in some patients.