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Table 1 Infectious etiology among 51 patients identified with community-based blood cultures first episodes, Calgary Health Region, Alberta, Canada (2001 and 2002).

From: Blood cultures in ambulatory outpatients

Species Occurrence (n = 54*)
Escherichia coli 18 (35%)
Staphylococcus aureus 7 (14%)
Streptococcus pneumoniae 7 (14%)
Group A streptococcus 4 (8%)
Klebsiella pneumoniae 3 (6%)
Coagulase negative staphylococci 3 (6%)
Dialister pneumosintes 1 (2%)
Bacteroides fragilis 1
Abiotrophia species 1
Neisseria meningitidis 1
Peptostreptococcus species 1
Proteus mirabilis 1
Pseudomonas aeruginosa 1
Salmonella species group C2 1
Streptococcus mitis group 1
Streptococcus milleri group 1
Streptococcus sanguis group 1
Streptococcus species 1
  1. Note: * Numbers do not add to 51 because three patients had polymicrobial infection; one each of Staphylococcus aureus/streptococcal species, Staphylococcus aureus/group A streptococcus, and Escherichia coli/Bacteroides fragilis.