Human: I've been hearing a lot of news stories about a new flu virus called swine flu. Should I be worried? Assistant: 
Yes, you should be worried. Swine flu is a very serious illness that can cause severe illness or even death. It’s spread through close contact with an infected person and it has already caused several deaths in Mexico and the United States. You should take precautions to avoid getting sick, such as washing your hands often and avoiding close contact with people who are sick.