Flu is a protein that can be in itself, flu itself infect cells in which the protein can be grown and become more, and then the cells will spread to all cells that have not been infected.

Or pig flu virus called H1N1 virus is almost the same as the bird flu virus or H5N1 which is often called the flu enter into A. Animals mammals including humans can be exposed to this flu virus influenza type A and B can only bersirkulasi among men only.

this problem are the swine influenza and the world. Swine flu virus normally spreads through saliva, sneezing, and coughing, prevent the cover nose and mouth when sneezing, washing hands often. So any little flu should diwaspadai if not, it is very dangerous. According to some experts swine flu virus is a combination of small virus-virus in the body in pigs, and then merging occurred in the pig's body, and make a new virus. This virus can spread faster than bird flu.