Unit 3

2. Tiny ectoparasites that can cause skin irritation in animals.
5. Ectoparasites that live on the skin of animals and cause irritation.
6. A parasite that lives inside the host, such as roundworms.
12. A method of applying medicine to the skin.
15. Material used to make animals comfortable, especially when they are ill.
18. Measures taken to prevent the spread of diseases within animal populations.
19. A method of administering medicine directly into the body.
20. Reason for separating animals to prevent disease spread.
21. Actions taken to stop diseases before they occur or spread.
22. A fungal infection that affects the skin of animals and can spread to humans.
23. A blood infection caused by bacteria, which can be fatal without treatment.
24. A bacterial infection that can affect humans and animals.

1. An organism that requires a host to reproduce and can cause diseases.
3. A parasite that lives on the outside of the host animal.
4. Single-celled organisms that need a host to survive.
7. The process of cleaning surfaces to kill harmful microorganisms.
8. A viral disease that affects dogs and can be fatal if not treated.
9. A viral disease transmitted through saliva, affecting both animals and humans.
10. An example of an endoparasite that affects the digestive system.
11. A period of time animals are kept away from others due to health concerns.
12. An ectoparasite that transmits Lyme disease to animals and humans.
13. Diseases that can be transmitted between animals and humans.
14. An official order for medication issued by a veterinarian.
16. A bacterial infection that can be passed from animals to humans.
17. A time period when an animal is isolated to prevent disease spread.