This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'All are included in acute flaccid paralysis surveillance, except - \nSelect and explain. \nA. Tone, B. Age, C. No cause, D. Transient weakness', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Confirmed case in AFP surveillance is defined as acute onset of focal weakness or paralysis characterized by flaccid (reduced tone) without other obvious cause in children <15years of age. Cases of Guillain -Barre syndrome should be included as cases of acute flaccid paralysis (AFP).\nTransient weakness (e.g. post-ictal weakness) should not be included.', 'role': 'assistant'}]