Question

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

a) Adhesion, colonization, invasion, infection
b) Invasion, adhesion, infection, colonization
c) Colonization, invasion, adhesion, infection
d) Infection, colonization, adhesion, invasion

Answer 1

The correct consecutive stages of pathogenesis are exposure, adhesion, invasion, and infection, corresponding to option C.

Step-by-step explanation:

The correct order of the stages of pathogenesis is exposure, adhesion, invasion, and infection. Therefore, the correct choice is C: exposure, adhesion, invasion, infection. Initially, the pathogen has to come into contact with the host (exposure). Once in contact, the pathogen adheres to the cells of the host. Following adhesion, the pathogen invades the host tissues. Finally, an infection is established as the pathogen successfully multiplies and affects the host's normal processes, potentially leading to disease.