Viral Ailment is a term used to describe illnesses caused by viruses. The most common example of a viral ailment is the FLU, which is caused by the influenza virus. The FLU is highly contagious and can cause symptoms such as fever, chills, body aches, and fatigue. It is important to take preventive measures such as getting vaccinated and washing hands regularly to reduce the risk of contracting the FLU.