Human Vaccine Against Bird Flu Within Reach
Before the much known swine-flu there was already a problem associated with a strain of the flu virus that crossed the species barrier, bird flu. Now there have been several strains and the spread of this deadly disease (virologists are saying this is virus is more dangerous than swine flu even if it never reached pandemic status). Though Bird flu is known to be more dangerous than swine flu, it has a higher mortality rate compared to the swine flu pandemic that has also seen a lot of deaths yet they are still way lower than bird-flu. There is another problem that has shown up during the course of two pandemics, the evolution of these viruses that are now making them quite immune to the vaccines that are under development. Australian researchers have been hard at work developing a vaccine for all the strains of bird-flu that have been identified yet they have not yet been released for the public to use due to a need for further research and testing as to the effectivity of the vaccine. This fact also gives clue to the utter complexity bird flu has for swine flu already has a viable vaccine under human testing and is expected to come out of the lab by November this year, bird flu has yet to come out with an effective vaccine.