Experts watch bird flu – H5N1 – with hands over eyes
No one thought cows could catch flu; herds in Idaho have been infected twice with this strain, setting up worry that the virus could circulate endlessly on farms. There are no vaccines.
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No one thought cows could catch flu; herds in Idaho have been infected twice with this strain, setting up worry that the virus could circulate endlessly on farms. There are no vaccines.
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