NYT > Top StoriesA single spillover, from a bird to a cow, led to the infections, a review of genetic data has found.
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Bird Flu Outbreak in Cattle May Have Begun Months Earlier Than Thought
NYT > Top StoriesA single spillover, from a bird to a cow, led to the infections, a review of genetic data has found.
NYT > Top StoriesA single spillover, from a bird to a cow, led to the infections, a review of genetic data has found.