What does it mean if polio only targets motor neurons?

Destination: Many germs have specific affinity, or a desire to go certain places. Many fungi can only thrive on your skin surface, some viruses go to your GI tract an cause diarrhea, while some go everywhere like the flu to make you miserable. Polio starts out as a gut virus but it has an affinity for the motor neurons where it does its most damage.Its the way they are.

CellsThatActivateMus: It destroys the nerve cells which activate muscles.Those are the nerve cells it destroys.And those are the motor cells.Motor Neurons in the Brain and Anterior Horn Cells in the Spinal Cord.