Cases of avian flu ID’d in Jay, Adams

Another location in Jay County has tested positive for bird flu.

On Sunday, Indiana State Board of Animal Health identified the 11th case of highly pathogenic avian flu in the county at a commercial table egg pullet facility.

There was also a new case of avian flu reported in Adams County, marking its third of 2025.

The new case affects the second-largest amount of birds in the county thus far at 1.34 million. (The largest was 1.4 million.) The facility is currently under quarantine and there is a 10-kilometer control area and a 20-kilometer surveillance zone around the property.

More than 5.5 million birds have been affected in Jay County this year, the most of any county in Indiana.

In Adams County, the new case affected 3,400 birds at a commercial breeder duck facility. It is also under quarantine and has a control area and surveillance zone.

No new cases of avian flu have been reported in Ohio since a pair of confirmed positive tests in Mercer County on March 6.

In 2025, Darke County and Mercer County have been the hardest hit by avian flu in Ohio at 8.32 million and 6.11 million birds affected, respectively.

The new cases bring the 2025 totals to 4.24 million birds affected in Jay County, the highest total in Indiana, and 6.11 million in Mercer County. (Darke County is the only county with more cases in Ohio at 8.32 million.)

Jay, Mercer and Darke counties are among the top agriculture producers in their states. Jay County ranks second in Indiana in the market value of poultry and eggs sold annually at $301.8 million, according to the 2022 Census of Agriculture. Darke and Mercer counties are No. 1 and 2, respectively, out of Ohio’s 88 counties at more than $1.1 billion combined.