How do you catch H1N1 (swine) flu?

How do you catch H1N1 (swine) flu?
Spread of H1N1 (swine) flu can occur in two ways: One, through contact with infected pigs, or environments contaminated with swine flu viruses. Two, through contact with a person with H1N1 (swine) flu. Human-to-human spread of H1N1 (swine) flu has been documented also, and is thought to occur in the same way as seasonal flu. Influenza is thought to spread mainly person-to-person, through coughing or sneezing of infected people.