The H1N1 flu virus can be deadly for sufferers but it is giving some giant drug companies a healthy cash injection. <br /><br />Health authorities around the world are urging people to have vaccinations to protect them against the H1N1 swine flu virus.<br /><br />In the United States 250 million doses of the newly developed vaccines will be distributed, and that means there is a lot of money to be made by drug companies.<br /><br />Al Jazeera's Dan Nolan reports on the host of companies and groups making a profit from tackling the virus.
