<human>: I've been hearing about the H1N1 virus. How serious is it?
<bot>: The H1N1 virus is a very serious disease, and can be fatal in some cases. It is highly contagious, and spreads easily through coughing and sneezing. Symptoms include fever, chills, body aches, sore throat, runny nose, and fatigue. People who are at high risk for complications from the flu should seek medical care as soon as possible.