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1 .This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?
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2 .With swine flu the big infectious disease story, you don't hear much about bird flu these days.
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3 .And you may not have to look past your own nose for the reason.
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4 .Because a new study finds that bird flu viruses may have trouble getting a good foothold in humans thanks to the temperature of our noses.
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5 .That's according to research just published in the journal Public Library of Science Pathogens.
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6 .Avian or bird flu comes in sixteen subtypes.
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7 .Some can pick up surface proteins from human flu viruses that allow the bird virus to then infect humans.
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8 .But the new study shows that normal bird flu viruses just can't seem to cut it at the typical human nose temperature of about 90 degrees Fahrenheit.
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9 .Probably because the bird viruses usually make their home in the guts of birds, at a balmy 104 degrees Fahrenheit.
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10 .So if a normal bird flu virus checked into your nose, chances are it would check out before it had a chance to multiply, mutate and do any damage.
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11 .Indeed, in this case your chilly beak is something to crow about.
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12 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Steve Mirsky.
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