4 Suspected Bird Flu Cases Reported in Washington State Farm Workers

The workers—who experienced only mild symptoms—are employed at a farm that was the site of an avian influenza outbreak earlier in October.

In this file photograph, chickens walk in a fenced pasture at a farm in Iowa on Oct. 21, 2015. Charlie Neibergall/AP Photo

Four agricultural workers in Washington state may be infected with highly pathogenic avian influenza, commonly known as bird flu, the Washington State Department of Health stated on Oct. 20.

The four people tested “presumptively positive” for the disease after working with infected poultry at a commercial egg farm in Franklin County, officials said in a statement.