Which of the following is not considered a qualified disability under the ADA?

The Americans with Disabilities Act (ADA) defines a disability as a physical or mental impairment that substantially limits one or more major life activities. Among the options presented, the flu is typically a temporary illness that does not generally meet the criteria for a qualified disability under the ADA.

In contrast, psychoactive substance use disorder can be seen as a qualified disability if it substantially limits a major life activity, especially when an individual is in recovery. Multiple sclerosis and paralysis are both chronic conditions that are recognized as impairments that significantly impact major life activities, thus qualifying them under the ADA.

In summary, the flu, being largely transient and typically not resulting in long-term limitations, does not align with the ADA's definition of a qualified disability, positioning it correctly as the choice that is not considered a qualified disability.