Seasonal Ailment is a term used to describe illnesses that occur more frequently during certain times of the year. The most common seasonal ailment is the FLU, which is caused by a virus and is characterized by symptoms such as fever, chills, body aches, and fatigue. The FLU is highly contagious and can be spread through contact with an infected person or through airborne droplets. It is important to take preventive measures such as getting vaccinated and washing hands regularly to reduce the risk of contracting the FLU.