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Poliomyelitis, commonly shortened to polio, is an infectious disease caused by the poliovirus. In about 0.5 percent of cases, it moves from the gut to affect the central nervous system and there is muscle weakness resulting in a flaccid paralysis. This can occur over a few hours to a few days. 

Our Online Academy UPSCCONNECT Provides Comprehensive  Syllabus Coverage of Science & Technology particularly designed for the students preparing for UPSC Civil Services Examinations.