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Why is bird flu highly lethal to some animals, but not to others?
Euronews via Yahoo News· 20 hours agoWhy didn't the same happen to US farmworkers? Some experts wonder whether people have some level of...
Bird flu is highly lethal to some animals, but not to others. Scientists want to know why
Napa Valley Register· 15 hours agoBird flu has been blamed for the deaths of millions of wild and domestic birds worldwide in the past...