Polio virus infection can result in all except ?
Ans. is 'd' i.e., Paralysis in > 70 of cases o Poliovirus selectively damage motor and autonomic nervous system. o Most commonly affected areas are the anterior horn of the spinal cord, vestibular and cranial nerve nuclei and vital centres in the medulla and vermis, and nuclei in the roof of cerebellum. o When respiratory centers are involved the respiration becomes shallow and irregular. o Areas which are usually not affected White matter of spinal cord, Cerebellar hemisphere, Nonmotor pa of cerebral coex. o Paralytic polio is seen in less than 1% of polio infections.
Anterior horn cell damage
Autonomic involvement
respiratory involvement
Paralysis in > 70% of cases