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68681 Microbiology

A 45-year-old man goes to his family doctor complaining of a constant, non-productive cough. The man also has severe chest pains which he says have bothered him for the past week. The man also says that this is unusual for him because it is summer and he usually gets his “colds” in the winter and not in July. When the physician examines the man’s chest, he hears an abnormal or pathological sound upon auscultation. The man had pneumonia with consolidation in both lobes. No organism was isolated from his sputum on blood agar, but the physician gave him a shot of penicillin “just in case”. As it turned out, the penicillin shot did nothing to relieve the man’s distress. After 96 hours, a Gram-negative bacterium from the man’s sputum did grow on buffered charcoal yeast extract. What disease did this man have?

ALegionnaires' disease
BLobar pneumonia caused by Klebsiella pneumoniae
CLobar pneumonia caused by Streptococcus pneumoniae
DPsittacosis
Microbiology
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