Across
- a substance that can kill bacteria or slow the growth of bacteria
- ______________ is used to kill pathogens in many different typers of food.
- cannot spread from one individual to another
- a reaction to a harmless or common substance by the body's immune system
- can be spread from one individual to another
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Down
- an immune system cell that engulfs pathogens and other materials
- the ability to resist or to recover from an infectious disease
- a disease in which the cells begin dividing at an uncontrolled rate and become invasive
- a virus, microorganism, or other organism that causes disease
- a substance that helps your body develop immunity to a disease
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