This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Which of the following is a characteristic of poliomyelitis - 
Select and explain. 
A. Initial febrile illness followed by development of asymmetrical paralysis, B. Symmetrical muscle wekaness with frequent paraesthesia but normal reflexes, C. Ascending motor paralysis with presevation of reflexes and sensation, D. Pain in the affected limb with sensorimotor deficit
A: Initial febrile illness followed by development of asymmetrical paralysis
Answer: A: Initial febrile illness followed by development of asymmetrical paralysis 
Explanation: <p> A history of fever at the time of onset of paralysis is suggestive of polio. The paralysis is characterised as descending.i.e.staing at the hip then moving down to the distal pas. It is asymmetrical paralysis.. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:205-206. <\p>