Which of the following choices lists the steps of pathogenesis in the correct order?

• A. Invasion, exposure, infection, adhesion
• B. Adhesion, infection, exposure, invasion
• C. Exposure, adhesion, invasion, infection
• D. Infection, invasion, adhesion, exposure

Answer: (C)

Verified step by step guidance

1. Understand the concept of pathogenesis, which is the process by which an infection leads to disease.
2. Identify the first step: Exposure. This is when the host comes into contact with the pathogen.
3. Recognize the second step: Adhesion. This is when the pathogen attaches to the host cells.
4. Identify the third step: Invasion. This is when the pathogen enters the host cells or tissues.
5. Recognize the final step: Infection. This is when the pathogen multiplies and causes damage to the host.