Multiple choice Which of the following is/are the causative agent of polio? Poliobacteria Polioascariasis Poliovirus Poliotytis None of these Reveal answer Fill a bubble to check yourself C Correct answer Explanation Polio is caused by poliovirus. Poliovirus, the causative agent of poliomyelitis (commonly known as polio), is a human enterovirus and member of the family Picornav.