Swine flu is caused by a virus.
People who are exposed to poultry and swine are at a higher risk of being infected.
Swine flu is contagious, the flu mutate more in human and makes it harder to treat.
The outbreaks were first detected in Mexico, then texas and California, it is also confirmed in canada, Spain and uk. President Obama said, "the flu outbreak is a cause for concern but not a cause for alarm"
If someone has it try not to let them cough or sneeze around you, wash hands regularly
