To: Taro who wrote (278654 ) 3/6/2006 11:27:26 AM From: Jim McMannis Read Replies (3) | Respond to of 1572073 Leavitt: Second Bird Flu Vaccine in Works By MIKE STOBBE, AP Medical Writer 18 minutes ago ATLANTA - Federal health officials announced Monday they have authorized the development of a second bird flu vaccine to combat a deadly virus that is believed to be mutating. The government has several million doses of an early first bird flu vaccine, but that vaccine was based on a sample of virus taken from Vietnam in 2004. The virus is believed to have mutated since then, and the form now circulating in Africa and Europe may be different, health officials said. U.S. Health and Human Services Secretary Mike Leavitt said Monday he had authorized the National Institutes of Health and the federal Centers for Disease Control and Prevention to begin working on a second vaccine for humans. "In order to be prepared, we need to continue to develop new vaccines," Leavitt said at an immunization conference in Atlanta. The World Health Organization has reported at least 174 human cases of bird flu, including 94 deaths. So far, most if not all of the human victims came in direct contact with infected animals, but health officials worry that as bird flu spreads, it could mutate into a strain that easily passes human to human. Dr. Margaret Chan, who is spearheading the WHO efforts against the virus, said it poses a greater challenge to the world than any previous infectious disease. Since February, the virus has spread to birds in 17 new countries in Africa, Asia, Europe and the Middle East, Chan said. Poland on Monday confirmed its first outbreak of the disease, saying laboratory tests found that two wild swans died of the lethal strain. Several cats have also tested positive for the deadly strain in Austria's first reported case of the disease spreading to an animal other than a bird, officials in that country said Monday. The WHO describes bird flu as unprecedented in its scope as an animal disease, saying it is costing the world's agriculture industry more than $10 billion and affecting the livelihoods of 300 million farmers. ___