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

invasion, infection, adhesion, exposure

adhesion, exposure, infection, invasion

exposure, adhesion, invasion, infection

disease, infection, exposure, invasion

Option (3).

Explanation:

Pathogenesis may be defined as the process of development of the visible diseased state in the organism. The development and origin of any disease can be easily determined by the process of pathogenesis.

The pathogen should get exposure (contact) to cause a disease. Then, it should get adhere in the tissue and body of the organism. The invasion is important for the infection of the disease. Infection is the last stage in which the disease is visible. Hence, the order is exposure, adhesion, invasion, infection.

Thus, the correct answer is option (3).