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Pennsylvania Declares Crisis as Avian Flu Hits 7M Birds

2/28/2026

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Summary

Story summary

The U.S. avian influenza outbreak has led to 196 million birds culled over four years.
The virus, spread by wild birds, has infected farm workers and mammals.
Pennsylvania Governor Josh Shapiro declared a crisis.
The first commercial Pennsylvania case this year occurred in late January at a farm with 1.5 million egg-laying hens.
Since January 28, outbreaks have been reported at farms with over 7 million birds.

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Story summary

The U.S. avian influenza outbreak has led to 196 million birds culled over four years.
The virus, spread by wild birds, has infected farm workers and mammals.
Pennsylvania Governor Josh Shapiro declared a crisis.
The first commercial Pennsylvania case this year occurred in late January at a farm with 1.5 million egg-laying hens.
Since January 28, outbreaks have been reported at farms with over 7 million birds.