Oral Amoxicillin But Did in Medicine / Internal Medicine — 52yo Man | Respiratory / Pulmonology | SMLE Q#17878
SMLE Question #17878
Medicine / Internal Medicine
Respiratory / Pulmonology
Objective: OBJ-RESP-LEGIONELLA-01
Last updated: February 2026
A 52-year-old man presents to the emergency department after recent international travel. He was treated abroad for community-acquired pneumonia with oral amoxicillin but did not improve. He now has worsening cough, myalgia, and abdominal pain with diarrhea. He is drowsy and confused (GCS 11/15). Chest X-ray shows bilateral basal patchy opacities. What is the most likely cause of his illness?
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