UNIVERSITY PARK – Penn State poultry experts are calling for stepped-up biosecurity practices after the ongoing detection of avian influenza in wild birds and domestic flocks in several eastern and mid-western states. At risk is PA’s large poultry industry, the state’s second largest agricultural sector with production at more than $1 billion annually. PA is fourth among states in egg production and Lancaster County is among the top four counties nationally in sales of poultry and eggs. The Eurasian H5N1 strain of avian flu had been confirmed in commercial poultry flocks in Delaware, Kentucky, and Indiana and in about 250 wild waterfowl in nine Eastern states that, like Pennsylvania, are part of the Atlantic flyway for migratory birds. While PA poultry owners prepare for a potential avian flu outbreak, Penn State’s Animal Diagnostic Laboratory is monitoring for the disease.