Bird flu has killed 32 people in thailand and vietnam and millions of chickens across Asia in 2004,but
there has been no concrete evidence of human-to-human transmission of the disease.
however, global health experts agree that the world is overdua for a flu pandemic and scientists are
racing to develop an effective vaccine that would limit the damage.
Even if all companies started full-scale production just before the beginning of a pandemic, there
would still not be enough vaccine for the whole world,'' mr.klaus stohr of the world health organization said.