Bird flu transmission most likely from workers, cows and vehicles going to multiple farms --Agriculture Dept. report

Bird flu pandemic risk high as cow cases appear and officials warn of humans’ role USDA report finds transmission likely happening when workers, cows, vehicles and equipment go to multiple farms The Guardian

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Although officials believe this outbreak was originally sparked by a single introduction from migratory birds into cows – for instance, via feed contaminated by bird feces – late last year, genomic analyses now suggest it is being spread between animals and farms by human activity, according a report released by the US Department of Agriculture (USDA) on Thursday.

The report, which focused on cases in Michigan, found that transmission is likely happening when workers, cows, vehicles and equipment go to multiple farms.

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