From the kingdom protist, these microscopic animal like organism that cause disease.

A class of organisms that harm their host by producing toxins that interfere with normal body function.

Ten people became sick with the flu after attending a school dance. What is the scenario that could best explain how the people got sick?

How can the rate of an infectious disease be drastically reduced?

Ebola is a deadly viral disease that spreads easily but is relegated to several countries on the continent of Africa.

The best way to prevent a viral infection is to

a class of organisms that feed primarily on dead material that can cause illness.