Resp - Legionella Pneumophilia

Question 1

Morphology

Answer 1

Gram negative coccobacilli

Question 2

Classification/Diagnosis

Answer 2

N/A

Question 3

Pathology

Answer 3

Replicates inside alveolar macrophages

Question 4

Epidemiology

Answer 4

amoebae are natural hosts, common in bodies of water (AC cooling towers, hot tubs), elderly at high risk

Question 5

Diseases/Symptoms

Answer 5

Legionairre’s disease (cough, high fever, pneumonia, other complications, mortality >15%)

Pontiac fever 9acute, self-limited flu-like illness)

Question 6

Treatments/Vaccinations

Answer 6

Azithromycin or macrolides

levofloxacin or other fluoroquinalones