This is the first publicly known outbreak of avian flu in Pennsylvania since March 27 in Lancaster County. Prior to that, millions of birds were affected across the state by avian flu.

Avian influenza has been spreading at higher levels worldwide over the past five years, including in wild birds and poultry farms in Europe. The virus has occasionally jumped from birds into ...

The first hints that a new strain of avian illness is emerging could be found on this beach on Delaware Bay, where migrating birds flock. Here’s what virus detectives who return there every year ...

Hickman’s Family Farms is beginning to lay off employees, after avian flu forced the company to euthanize about 95% of its egg-laying hen population, about 6 million birds in all. The company ...