What is Swine Flu?
Swine flu is a respiratory disease that normally affected pigs

Swine flu is caused by influenza type A, and is quite contangiuous and spreads fast amongst herds of pigs.
High levels of Swine Flu occur when the climate is cooler such as in AUtum WInter time.
Like human flu, there are many different strains, and the way it is constantly changing/adapting

Can I catch Swine Flu?
Yes you can, but this is usually by having contact with pigs or obviously from other infected humans. This is particularly the case as the current H1N1 strain of influenza type A, which has never been seem before.

Source: Reuters