Question

A forty-five year old lawyer presents to your office complaining of sporadic cough, fatigue, and low-grade fever for the past seven days. Ten days prior, he attended a convention in Chicago where the air conditioner was set at 68 degrees Fahrenheit. A physical examination is unremarkable. Sputum is sent for culture and sensitivity. The organism grows on a buffered charcoal/yeast extract requiring iron and cysteine.

• What is the most likely organism?

• What is the drug of choice?

Answer 1

* Which organism is grows on a buffered charcoal yeast extract requiring iron and cysteine .

- Organism - Legionella which is grown on charcoal / yeast extract requiring iron amd cysteine .

- It is gram negative bacteria which include the L.Pneumophila which gives the ddisease like pneumonia , flue like mild fever .

* What is the drug of choice ?

- The drug of choice to combat this organism is Azithromycin which is macrolides , and quinolones - levofloxacin , ciprofloxacin , trovofloxacin , moxifloxacin .