Table 1.

Organisms Isolated From Infants From Blood or Cerebrospinal Fluid During the First Week of Life*

Pathogenn%Mean (Median) Day of Onset
Group B streptococcus7640.4.1 (0)
Escherichia coli 3116.52.3 (1)
Streptococcus viridans 147.4.6 (0)
Staphylococcus aureus 126.42.3 (0.5)
Enterococcus spp115.91.6 (2)
Coagulase-negative105.32.8 (2)
Staphylococci
Klebsiella pneumoniae 84.33.9 (5.5)
Pseudomonasspp52.70 (0)
Serratia marcesens 42.10 (0)
Streptococcus pneumoniae 31.60 (0)
Haemophilus influenzae 21.10 (0)
Listeria monocytogenes 21.13.5 (3.5)
Citrobacter 21.15 (5)
Micrococcus 21.1 0 (0)
Others 63.2.2 (0)
  • * Two organisms isolated from cerebrospinal fluid and 3 organisms isolated from both blood and cerebrospinal fluid.

  • Required ≥2 isolates identified from separate blood cultures and clinical symptoms.

  • One each of the following organisms: group A streptococcus, Lactobacillus/Bacillus spp, Proteus mirabilis, Campylobacter, Fusobacterium nucleatum, E cloacae.