12-Loss of reflexes
After an initial period of viral symptoms, early signs of paralytic polio begin with loss of superficial reflexes. We identify them by giving painful stimuli or touching the skin, mucous membranes, or in the cornea of the eye. One of the most widely used tests is the plantar reflex or Babinski reflex stimulation; with a pointed object, the sole is rubbed from the heel to the toes. The toes have to reflex; if not occurs, it may be an indication of damage to the nerves.