Genetic Change Aids Avian Flu
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Business & Economics
Bird flu variant found in Nevada cows shows signs of adaptation to mammals | CNN
84% Informative
A dairy farm worker in Nevada has screened positive for H5N1, the first human infection identified in the state.
Researchers aren’t sure how the D1.1 variant was transmitted to the Nevada cows.
It raises the possibility that another animal, perhaps a cat or fox, brought the virus onto these farms.
The risk of the public is still low, although people who work on farms or who have backyard flocks are at higher risk.
D1.1 was associated with two severe human infections in Canada and Louisiana .
Genome sequencing revealed concerning changes to the virus that likely helped it break into human cells.
One theory is that this change in the N portion of the virus helps it evade any immunity that people have to seasonal flu viruses.
VR Score
86
Informative language
86
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67
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