The Immune System. II. How diseases are spread 1.Physical contact 2. Contaminated food and water 3. Infected animals (vectors) III Fighting Infectious.
Immune System. Disease A disease is any change other than injury, that disrupts the normal functions of the body. Some diseases are inherited, others.
The Immune System
Human Immunity Ch. 40. I.Infectious Disease A. Disease 1. Any change (other than injury) that disrupts normal body function 2. Caused by pathogens B.
