Both H9N2 and H5N1 were detected at the duck farm in Merced County, according to tests conducted by the US Department of Agriculture (USDA) National Veterinary Services Laboratory. The event began on November 23, with clinical signs that included increased deaths in the ducks.

A new strain of H5N9 bird flu was detected at a commercial duck operation in California's Merced County. All the ducks were euthanized.

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

The United States has reported its first H5N9 bird flu outbreak in California, affecting almost 119,000 ducks. Both H5N9 and the more common H5N1 stra

The Department of Agriculture warned egg prices may increase more than 20% this year, after December saw a year-over-year increase of 36.8%.

A UC Davis veterinary professor explains how bird flu is transmitted, why it’s an “insane outbreak” and the worst-case scenario.

The United States has reported its first outbreak of H5N9 bird flu in poultry on a duck farm in California, the World Organisation for Animal Health (WOAH) said on Monday.

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 to eat poultry? A doctor explains.

A new strain of a highly pathogenic and rare strain of bird flu has been reported on a duck farm in central California.

Struggling to find eggs or noticing the price for a carton is ridiculously high? Here's what's happening and if it'll change anytime soon.

This story incorporates reporting fromU.S. News & World Report, cidrap.umn and scmp.com.The United States has reported its initial outbreak of the H5N9 bird flu strain in poultry, specifically at a duck farm in Merced County,