Describe the characteristics of disease-producing agents.

Description should include

  • how microbial agents (i.e., viral, bacterial, protozoan, fungal) cause disease, including ways they enter and leave the body
  • the concept that microbes can remain infective for various periods of time
  • methods for destroying pathogenic organisms.

Process/Skill Questions:

  • How do viral, bacterial, protozoan, and fungal agents differ from each other?
  • How do disease-producing agents spread from one animal to another?
  • Why are antibiotics not effective against viral infections?
  • What methods exist for decreasing an animal's exposure to infectious organisms?
  • What is a species-specific disease?
  • What is a nosocomial infection?
  • What are fomites?