The Swine Flu is susceptible to four licensed drugs in the United States, amantadine, rimantadine, oseltamivir and zanamivir. However, for the 2009 outbreak, it is recommended it be treated with oseltamivir and zanamivir. The vaccine for the human seasonal flu does not protect against the swine flu. Even if the virus strains are the same specific variety, the antigenicity is very different.