Across
- 2. a substance usually prepared from killed or weakened pathogens that is introduced to the body to produce immunity
- 6. made up of antibodies and certain types of blood cells;helps fight diseases
- 9. reaction to injury or infection that is characterized by pain, redness, or swelling
- 10. changes that you notice in your mind or body that are caused by a disease or disorder
- 11. organisms that absorb and use the nutrients of living or dead organisms
- 14. one of the most common infections caused by a parasite within the United States
- 15. this is considered nonliving since it cannot reproduce outside of a living host
- 16. any disease that is caused by an agent that has invaded the body
- 17. bacterial infection of the digestive system, spread by eating contaminated foods
Down
- 1. bacteria, viruses, and fungi are examples of this
- 3. sweat, tears, and stomach acids are examples of this used to destroy pathogens
- 4. you can help prevent this by not taking antibiotics for viral infections
- 5. extra doses of a vaccine that help the body maintain the production of memory cells for a particular disease
- 7. caused by a bacteria usually found in the soil
- 8. there are over 300 different kinds of these living in your mouth, not all of them cause disease
- 12. the varicella virus is the pathogen that causes this type of infection
- 13. malaria is caused by this type of agent