What you need to know about the Swine Flu or the Human Swine Influenza A (H1N1) virus that has hit Mexico, the United States, Canada, and other parts of the world.
What is Swine Flu?
Swine Influenza or swine flu is a type of respiratory disease in pigs caused by type A influenza virus that regularly causes outbreaks of influenza in pigs. The disease is normally not passed on to people but human infections can and do happen. A few cases of swine flu viruses have been reported to spread from person to person but in the past, transmission was only limited and not sustained beyond three people.