A doctor discovered a family living on a farmland in North America, which were not affected by flu and found that the family kept a raw onion in each room in their house. When the doctor examined the onions, he discovered that the onions indeed had absorbed the influenza virus.

How can you use an onion to help shake off any flu symptoms (and colds) that you may have?
Blend an onion until it turns into juice, and drink it. Now this is not for everybody as it tastes awful, but if you can handle it then you will find that it will make you cough up all the flem in your chest. The onion juice will break up the mucus in your chest. This method can leave you quite tired and this routine may need repeating once more, but you should not do it more that 3 times in a 24 hour period.

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