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
All are included in acute flaccid paralysis surveillance, except - 
Select and explain. 
A. Tone, B. Age, C. No cause, D. Transient weakness
D: Transient weakness
Answer: D: Transient weakness 
Explanation: 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).
Transient weakness (e.g. post-ictal weakness) should not be included.