Corinne is plagued by fears that she is going to be "contaminated" by some germ-infested object she happens to touch, then will develop some horrible illness and die. as a result, she engages in elaborate hand-washing rituals. she spends several hours a day at the sink and washes her hands after touching anybody or anything that might have dirt or germs. her symptoms are most suggestive of disorder.

I believe the answer is: Obsessive-Compulsive

Obsessive-Compulsive Disorder refers to a form of psychological illness, that make a person keep getting uncontrollable desire to repeat a certain action over and over again. This disorder tend to be caused by underlying obsession toward a certain things. For example the obsessive need to remain sanitary or obsessive need to have things on symmetrical order.

answer; belief perseverance;