July 7, 2025
Pennsylvania commercial gamebirds struck by avian flu
Prior to this, nearly a month had passed without any new instances of highly pathogenic avian influenza in a U.S. commercial operation.
Excerpt:
The United States had gone nearly one month without any new cases of HPAI in commercial operations, as the last flock infection was confirmed on June 5. In that situation, a flock of 342,100 commercial egg layer pullets in Maricopa County, Arizona, was affected.
This marks the first commercial flock in Pennsylvania to be struck by HPAI since a commercial turkey flock in Franklin County was affected on March 21. The last time HPAI was found in a commercial operation in Lancaster County was February 11, and that flock included 80,000 broilers.
So far in 2025, Pennsylvania has had nine commercial flocks affected by HPAI.
Pennsylvania did not have any commercial poultry flocks struck by HPAI during 2024, but in 2023, it had 25 commercial flock infections. In 2022, the state also lost 25 commercial flocks to HPAI.
Pennsylvania commercial gamebirds struck by avian flu
Prior to this, nearly a month had passed without any new instances of highly pathogenic avian influenza in a U.S. commercial operation.
Excerpt:
The United States had gone nearly one month without any new cases of HPAI in commercial operations, as the last flock infection was confirmed on June 5. In that situation, a flock of 342,100 commercial egg layer pullets in Maricopa County, Arizona, was affected.
This marks the first commercial flock in Pennsylvania to be struck by HPAI since a commercial turkey flock in Franklin County was affected on March 21. The last time HPAI was found in a commercial operation in Lancaster County was February 11, and that flock included 80,000 broilers.
So far in 2025, Pennsylvania has had nine commercial flocks affected by HPAI.
Pennsylvania did not have any commercial poultry flocks struck by HPAI during 2024, but in 2023, it had 25 commercial flock infections. In 2022, the state also lost 25 commercial flocks to HPAI.

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