Multiple choice

Which of the following organisms is not affected by chloramphenicol?

  1. Tetracycline-resistant vibrio cholerae

  2. Salmonella typhi

  3. Enterococcus faecium

  4. Pseudomonas aeruginosa
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Chloramphenicol is not effective against Pseudomonas aeruginosa. Chloramphenicol resistance may be carried on a plasmid that also codes for resistance to other drugs or it is effectively pumped out by efflux pumps.

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