Roche AG’s Tamiflu anti-influenza drug has been proven to work against H5N1, the strain of the avian flu virus that the World Health Organization says could be the source of a deadly flu pandemic. In a study released late on Sunday, researchers from the Queen Mary Hospital in London said that oseltamivir, marketed by Roche as Tamiflu, is effective against avian and human forms of the virus, which has so far killed 32 people this year.
