This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli), Subject name: Microbiology
[{'content': "All statements are true except, \nSelect and explain. \nA. EAEC is associated with persistent diarrhea, B. EHEC can cause HUS, C. EIEC produce disease similar to salmonellosis, D. ETEC is a common cause of traveler's diarrhea", 'role': 'user'}, {'content': "Answer: C \nExplanation: EIEC produce disease similar to shigellosis, i.e. invasion of mucosa. OPTION 1 Persistent diarrhea especially in developing countries is most often caused by EAEC. OPTION 2 Enterohemorrhagic E. coli (EHEC): Serotypes associated with EHEC are: - O157: H7 (most common serotype). - Manifestations: HC (hemorrhagic colitis) and Hemorrhagic uremic syndrome (HUS). OPTION 3 EIEC produce disease similar to shigellosis, i.e. invasion of mucosa. - EIEC show atypical biochemistry (biochemically similar to Shigella spp. i.e, NLF, anaerogenic and non-motile) -Atypical E. coli. OPTION 4 ETEC is the most common cause of traveler's diarrhea.", 'role': 'assistant'}]