Multiple choice

The polio virus enters the body through

  1. mosquito bites

  2. tick bites

  3. contaminated food and water

  4. saliva and secretion from the nose

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Poliovirus is transmitted through the fecal-oral route, primarily via contaminated food and water. It is not transmitted through mosquito or tick bites (those are vectors for other diseases), nor through saliva and nasal secretions. Proper sanitation and vaccination have been crucial in polio eradication efforts.