资Information Video: 认识H1N1流感 Swine Flu: A Look Inside

The H1N1 Swine Flu: A Look Inside

https://www.youtube.com/watch?v=lFl3FRNpU4E http://www.discoverynews.com The H1N1 swine flu virus has become a pandemic. James Williams takes a look at where the swine flu originated and what happens to the virus once it gets inside our bodies.