New Genetically Modified Chickens Can't Transmit Bird Flu, Scientists Say
Future chicken cutlets may come from birds that have been genetically modified to resist bird flu, after a breakthrough in Britain announced this week. Researchers have produced chickens that cannot spread avian flu to other chickens, a major step toward protecting birds — and humans — from the deadly virus.
The transgenic cluckers still died from bird flu, however, so there’s still much more to be done before scientists produce a truly flu-free bird.
Generating flu-resistant birds may be more effective than giving vaccinations to an entire flock, said Dr. Laurence Tiley, a veterinarian and lecturer in molecular virology at the University of Cambridge, England, one of the authors of the chicken study. Vaccinated birds may not develop flu, but the virus can still replicate in their bodies and be transmitted to other unvaccinated fowl, he explained in a podcast with the journal Science, which publishes the study tomorrow. Besides, just like with human influenza, there are plenty of strains, and vaccines don’t cover all of them.
Science, Rebecca Boyle, animals, Avian flu, bird flu, chickens, Future of Food, Genetic Engineering, Genetically Modified Food, influenza, livestock, transgenic animalsThe new genetic modification is basically the opposite — birds will still get sick and die, but they won’t pass on the virus to other birds, a major advancement for animals that generally live in very close quarters. The lack of transmission also means the virus will be less likely to spread to people.
“You reduce the likelihood of transmission onto those people who are in contact with them, and therefore reduce the potential of avian flu strains to jump from birds into humans,” he said.
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