Symptoms can include coughing and sneezing, loss of appetite, diarrhea, declining egg production and fertility, and nervous ...

The safest way to add new chickens without bringing disease into a backyard flock is to purchase day old chicks. These chicks must be kept separate from the adult birds to avoid bullying and death.

In the United States, poultry producers have used a herpesvirus of turkeys (HVT) vaccine to combat Marek’s disease in chickens since the 1970s. “It worked incredibly well, but the viruses that broke ...

Quarantine new chickens before introducing them to your main flock to ensure they are not carrying any infections. Maintain proper hygiene in the coop to minimize the risk of disease.

“When a new strain of HPAI was identified in the U.S. in early 2022, our scientists immediately began work to update our previous avian influenza vaccine,” said Mahesh Kumar, Ph.D., senior ...

This is the fourth time since late May that a flock in the Polish town of Bieżuń has been struck by the disease.

Now, the USDA says it will send $400 million more to farmers who need new chickens. The agency also says it will pay $500 million for biosecurity measures and $100 million "for vaccine research ...