<human>:  What is the difference between a fever and a cold?
<bot>: The main difference between a fever and a cold is that a fever is a sign of an infection that is caused by viruses or bacteria, while a cold is primarily caused by viruses. A fever is usually accompanied by other symptoms such as aches, chills, and fatigue, while a cold is primarily characterized by a runny nose, sneezing, and coughing.