Pathogens | NPW (n=50) | Sputum (n=88) | FBAS (n=28) | TBAS (n=55) | PSB (n=125) | BAL (n=135) | Total pathogens isolated |
Bacterial | |||||||
Gram positive | |||||||
S aureus | 7 | 6 | 7 | 8 | 11 | 17 | |
S pneumoniae | 3 | 1 | 3 | 1 | 3 | ||
E fecalis | 1 | 1 | 1 | 2 | |||
N asteroides | 2 | 2 | |||||
Gram negative | |||||||
P aeruginosa | 6 | 2 | 6 | 2 | 4 | 11 | |
S marcescens | 1 | 1 | 2 | 2 | |||
A baumanii | 1 | 1 | 3 | 3 | |||
C freundii | 1 | 1 | |||||
M morganii | 1 | 1 | |||||
E coli | 2 | 1 | 1 | ||||
S maltophilia | 1 | 1 | 1 | ||||
H influenzae | 1 | 1 | 1 | 1 | |||
K pneumoniae | 1 | 1 | |||||
L pneumophila | 1 | 1 | 2 | ||||
Fungal | |||||||
A fumigatus | 7 | 3 | 12 | 10 | 12 | 30 | |
A flavus | 1 | 1 | |||||
A niger | 1 | 1 | |||||
C albicans | 2 | 2 | 5 | 6 | 6 | 8 | |
C tropicalis | 1 | 1 | |||||
C glabrata | 1 | 1 | |||||
P purpurogenum | 1 | 2 | |||||
S prolificans | 1 | 1 | 1 | 2 | |||
Viral | |||||||
Cytomegalovirus | 5 | 8 | |||||
Influenza A virus | 5 | 8 | 8 | ||||
RSV | 3 | 2 | 3 | ||||
Parainfluenzae virus type 3 | 2 | 2 | |||||
Enterovirus | 1 | 1 | |||||
VHS-1 | 1 | 1 | 1 | ||||
Others | |||||||
P carinii | 4 | 4 | |||||
M tuberculosis | 2 | 1 | 1 | 5 |
NPW = nasopharyngeal wash; FBAS = fibrobronchial aspirate; TBAS = tracheobronchial aspirate; PSB = protected specimen brush; BAL = bronchoalveolar lavage; RSV = respiratory syncytial virus; VHS-1 = virus herpes simplex-1.
↵4-150 Some organisms were simultaneously isolated with more than one technique and some of these techniques (FBAS, TBAS, PSB, and BAL) allowed the identification of more than one organism.