Introduction to Epidemiology 6th Edition by Ray M Merrill

Exercise 23

When was the poliovirus discovered? Explain its characteristics and the locations in the body where it was originally discovered.

Step 1 of 4

The viral agent causing polio is considered small as compared to other viruses like chicken pox and smallpox. The virus responsible for causing polio falls in the class Enterovirus belonging to the group Picornavirus. It is considered to be a contagious infection and the mode of transmission is oral-fecal and pharyngeal-oropharyngeal route.