What exactly is swine flu?

The swine flu is a flu mutation between a bird flu swine flu and human flu. It started someone had the flu already and a pig had the flu that injested somehow the bird flu. Which the pigs mutated flu got transmitted to the human by the pig caughing or sneezing extremly close to the humans face. The three flus mutated together. there really is no way to protect yourself other then being extremly careful bout washing your hands more and not being around sick people. and hope for the best.