Which of the following micro- organism causes diseases like polio and chicken pox?

Options

A. Bacteria
B. Protozoa
C. Algae
D. Virus

Answer

D

Explanation

Both polio and chicken pox are caused by virus. Poliomyelitis, often called polio or an infantile paralysis, is an infectious disease caused by the poliovirus, while, Chickenpox, also known as varicella, is a highly contagious disease caused by the initial infection with varicella zoster virus (VZV).