<human>: I've heard a lot of talk about swine flu. What is it?
<bot>: Swine flu is a type of influenza virus that infects pigs and humans. It's a very contagious disease that can spread from person to person through close contact, like touching or breathing in the same air. Symptoms include fever, coughing, sore throat, body aches, fatigue, vomiting, and diarrhea. In rare cases, people can die from the flu.