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Home » Bird Flu News

Vaccine Against Bird Flu Under Development

by Kaavya on April 19, 2008 at 11:08 AM Bird Flu News

Vaccine that protects against pathogenic bird flu and its evolving forms is at the moment under development by scientists led by a researcher of Indian-origin.

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Unlike traditional influenza vaccines, the new vaccine could be produced quickly and stored for long periods in preparation for a pandemic of dangerous disease-causing avian influenza - H5N1 - and its variants, said Suresh Mittal, a Purdue virologist.

Researchers at Purdue University and the Centers for Disease Control and Prevention who discovered the new preventative drug and tested it in mice, found that the vaccine protected against H5N1 for a year or longer.

Because the studies have only been done in mice, it's not yet known whether the same results will be obtained in humans.

"We want to have a vaccine that can be stored in advance and have the potential to provide protection for a period of time until we can change the vaccine to match the latest form of avian influenza," Mittal said.

"The combination of flu genes that we've used to produce the vaccine, I think, will provide that capability," he added.

The importance of having a long-lasting, broadly protective vaccine is that it would give some cross-protection against new viruses with pandemic potential caused by mutations in currently circulating H5N1 viruses.

This would give scientists time to develop a better vaccine that would match the latest form of the bird flu.

To produce the new vaccine, the scientists used a mutated common cold virus, known as an adenovirus, as a delivery system for important genes from two types of the H5N1 avian influenza.

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