A clinic assistant displays boxes of the antiviral drug, Tamiflu, which is effective in combating swine flu if the treatment is given early enough, Tuesday, April 28, 2009 at a local clinic in Singapore. Swiss drug company Roche Holding AG said on Monday it has 3 million packages of anti-flu treatment Tamiflu ready to deliver to any country in the world threatened by a pandemic virus. Roche said it can deliver Tamiflu anywhere within 24 hours when called on by the World Health Organization. (AP Photo/Wong Maye-E)