Jackson is constantly worried about germs. To deal with this worry, he often washes his hands, cleans his kitchen, scrubs doorknobs, and so forth. The cleaning behavior does provide some relief from the worry for a few moments, but the worries always return. Jackson probably has:

Germaphobia (Obsessive-Compulsive disorder)

Explanation:

Obsessive-Compulsive disorder is a mental disorder which is caused when the person has unwanted obsessions with his thoughts and his behaviour becomes compulsive that performs the routine actions.

The disorder is a chronic disorder and lasts for a long time as the person with the condition cannot ignore the situation for a very long time.

The person feels satisfied and comfortable only when they perform the compulsive actions but the obsessions and thoughts again come and the person again performs the actions.

In the given question, the person has Germaphobia, a condition in which the person has phobic conditions which arise due to germs and as a result of this the person develops the Obsessive-Compulsive disorder.

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