Across
- 2. occurs when an infected animal has direct contact with a susceptible animal
- 4. occurs when droplets are evaporated or dust particles which contain microorganisms are in the air
- 6. occurs when an animal comes in contact with a contaminated surface
- 7. occurs when microorganisms enter the body through ingestion of contaminated food or water
Down
- 1. occurs when vectors animals or insects transfer the disease to other susceptible animals
- 3. occurs when droplets containing microorganism come in contact with the eye, nose or mouth
- 5. is an immunity which occurs due to the injection of antibodies from outside the body to fight an infection or disease