<human>: I've heard that the swine flu is a big problem in Mexico. Should I be concerned?
<bot>: Yes, it's true that the swine flu has spread to Mexico and other countries around the world. The World Health Organization (WHO) reports that there have been over 1 million cases of the disease so far this year. It is important to take precautions such as washing your hands regularly and avoiding close contact with people who are sick.