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Table 2 Results of quantitative bacterial cultures of BAL and PSB

From: Diagnostic yield of quantitative endotracheal aspirates in patients with severe nursing home-acquired pneumonia

Pathogen

BAL (≤ 104)

PSB (≤ 103)

Staphylococcus aureus

12

8

Streptococcus pneumoniae

6

4

Streptococcus spp.

5

4

Haemophilus influenzae

3

2

Klebsiella spp.

5

5

Escherichia coli

6

6

Serratia marcescens

3

3

Proteus mirabilis

3

2

Enterobacter ssp.

4

4

Pseudomonas aeruginosa

2

1

  1. BAL, bronchoalveolar lavage; PSB, protected specimen brush.