A VIRUS THAT CAN CAUSE DISEASE

EX) PNEUMONIA,FOOD POISONING,AND ANY DISEASE THAT CAN INFECT YOU

IT CAN’T EFFECT YOU

The immune system is a host defense system

SOMETHING THAT EFFECTS YOU

A microorganism or microbe is a microscopic organism, which may exist in its single-celled form, or in a colony of cells.

Bacteria constitute a large domain of prokaryotic microorganisms.

A virus is a biological agent that reproduces inside the cells of living hosts.