What is H5N9 and how is it different from H5N1? Scientists classify bird flu viruses by which kind of two key proteins are ...

Bird flu infections around the U.S. have forced mass cullings and resulted in the deaths of zoo animals and pets ...

The H5N9 strain of avian influenza is much more rare than the H5N1 which has been responsible for most of the reported human ...

H5N9 and H5N1 are two strains of bird flu that have recently sparked concern, especially after a significant outbreak at a ...

A new bird flu strain was detected on a California duck farm. But what's the difference between H5N9 and H5N1, and is it safe ...

The FDA has advised pet food companies to revisit food safety plans as a growing number of cats have gotten sick or died from ...

Egg prices expected to stay high because of limited supplies as the virus continues to infect commercial flocks nationwide.

The US Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) today confirmed more H5N1 avian ...

The first U.S. H5N9 outbreak has raised concerns as scientists warn of evolving bird flu risks—here's what you need to know about the symptoms.

A pandemic is not inevitable, scientists say. But the outbreak has passed worrisome milestones in recent weeks, including ...

U.S. authorities also detected the more common H5N1 strain on the same farm in Merced County, California, they said in a ...

H5N1 Bird Flu Spreads In US: Highly infectious H5N1 virus, also known as the bird flu virus has tightened its grip on the ...