Pg.+129

Pg. 129
1. An infectious disease is a disease that can be passed from one living thing to another, while a noninfectious disease is a disease that is not spread from one person to another.

2. Five ways that you might come into contact with a pathogen are by contaminated objects, person-to-person, through the air, through animals, and through food and water.

3. A vaccine prevents many serious diseases by spreading killed or specially treated pathogens throughout the body to make your body immune to the pathogen.