The most likely microorganism that is responsible for the patient’s manifestations is:


#1

A 38-years-old African female presents with minimal sputum productive cough, low fever, and mild respiratory symptoms. Chest X-ray shows diffuse interstitial infiltrates. Microbiological tests shows non-motile, aerobic, gram negative rods, endospore-forming bacteria, and no growth is detected in the artificial cell-free media, enriched media, or buffered charcoal yeast extract. The patient smokes 2 cigarettes daily. The most likely microorganism that is responsible for the patient’s manifestations is:

A) Legionella pneumophila
Β) Mycobacterium africanum
C) Mycobacterium bovis
D) Mycoplasma pneumoniae
E) Chlamydophila pneumoniae
F) Coxiella burnetii
G) Listeria monocytogenes
H) Moraxella catarrhalis

Basically this case is of atypical pneumonia
And the two most common causative agents are mycoplasma and chlamydia
Both are gram -ve but mycoplasma is spiral and chlamydia is rod
So it is either D or E
Take this with a grain of salt i just started my prep like 1 month ago