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Table 1 Bacterial species found in Kenyan neonates and young infants with meningitis.

From: Clinical indicators of bacterial meningitis among neonates and young infants in rural Kenya

  Derivation period Validation period  
  Firstweek of life Age 7 to 59 days First week of life Age 7 to59 days Total
Gram positive      
Streptococcus pneumoniae 1 10 0 5 16
Group B Streptococci ** 2 5 0 6 13
Group A Streptococci 0 2 0 3 5
Group D Streptococci 1 0 1 0 2
Streptococcus viridans 0 0 1 1 2
Staphylococcus aureus 1 0 0 1 2
Gram positive cocci* 1 1 0 1 3
Gram positive rods 0 0 2 2 4
Clostridium difficile 0 0 0 1 1
Gram negative      
Haemophilus influenzae 1 6 0 1 8
Enterobacter sp. 3 2 0 0 5
Non-typhoidal Salmonella sp. 0 3 0 4 7
Escherichia coli ** 0 2 1 0 3
Pseudomonas aeruginosa ** 1 1 0 0 2
Psedomonas cepacea 0 0 0 1 0
Klebsiella pneumoniae 1 1 0 1 3
Acinetobacter sp. 1 1 0 0 2
Aeromonas sp. 1 0 0 0 1
Kluyvera sp. 1 0 0 0 1
Vibrio cholera 1 0 0 0 1
Neisseria meningitidis 0 1 0 0 1
Shigella sp. 0 1 0 0 1
Gram negative rods* 1 1 0 0 2
No organism isolated*** 15 31 10 21 77
Total 32 68 15 48 163
  1. * seen on Gram stain, but blood and CSF cultures and antigen tests were negative.
  2. ** One child grew E. coli and Group B Streptococci and another grew Pseudomonas aeruginosa and Acinetobacter sp.
  3. in CSF the total is therefore 54 isolates from 98 cases of meningitis in the derivative period.
  4. *** diagnosis based on CSF leukocyte count (see text).