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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.