Know what to do to protect yourself against these agents. Biological Agents and Effects Biological agents are microorganisms that can cause disease among personnel, animals, or plants. They can also cause the deterioration of material. Pathogens are living microorganisms that cause lethal or incapacitating diseases. Bacteria, rickettsiae, fungi, and viruses are included in the pathogens.
Toxins are poisons that plants, animals, or microorganisms produce naturally.
Germs Germs are living organisms. Some nations have used them in the past as weapons. Only a few germs can start an infection, especially if inhaled into the lungs. Buildings and bunkers can trap them thus causing a higher concentration. Germs do not affect the body immediately.