UKMLA PLAB AMC USMLE Prometric MCQ

Question Number 1146

Question:
A 68 year old farmer is seen with severe headache and fever. He has a history of a ten day cough with bloody sputum and consolidation on a chest xray showed for which he was given erythromycin by his physician. Physical examination was unremarkable except for bilateral is inspiratory crackles and a lumbar puncture was performed. This demonstrated a highly pleomorphic coccobacillii with gram-negative cell wall.
These features are characteristic of

a) Streptococcus pneumoniae
b) Bacteroides fragilis
c) Coxiella burnetii
d) Escherichia coli
e) Haemophilus influenzae