Human: What is the difference between a swine flu and the regular flu? Assistant: 
The main difference between a swine flu and the regular flu is that the swine flu is caused by a different strain of virus, which is more likely to infect humans. Swine flu can also cause symptoms such as fever, coughing, sore throat, body aches, fatigue, and vomiting. Regular flu usually causes similar symptoms but may also include a runny nose, headache, and chills.