Which of the following are the gram-negative bacilli that are responsible for nosocomial infec-tions when aerosol generators are in use?
a. Pseudomonas aeruginosa and Strepto-coccus pneumoniae
b. Legionella pneumophila and Streptococcus pneumoniae
c. Pseudomonas aeruginosa and Legionella pneumophila
d. Legionella pneumophila and Streptococcus viridans
ANS: C
The gram-negative bacilli are Pseudomonas aeruginosa and Legionella pneumophila. All the oth-er choices are gram-positive cocci.
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