While the H5N1 bird flu keep spreading, there has been for the first time ever a reported H5N9 outbreak in the United States. This occurred on a duck farm in California

The first outbreak of H5N9 bird flu in poultry has been reported in California on a duck farm leading to the culling of nearly 119,000 birds and concerns.

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

U.S. authorities also detected the more common H5N1 strain on the same farm in Merced County, California, they said in a report to Paris-based WOAH, adding that the almost 119,000 birds on the

The United States has confirmed its first case of highly pathogenic H5N9 avian influenza in poultry, following an outbreak at a duck meat farm in Merced County, California, the World Organization for Animal Health (WOAH) stated Monday.

A new strain of bird flu has been confirmed at a duck farm in California, the first time the variant has been discovered in poultry in the United States, an international agency said.

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.

The U.S. is reporting its first confirmed outbreak of H5N9 avian flu at a California duck farm amid a global surge in its sister strain H5N1, according to a report from the Paris-based World Organization for Animal Health (WOAH).

Both H5N9 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.

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.

A California duck farm has culled thousands of birds as the virus seems to be trading genetics with other viruses

H5N9 is a rare subtype of the influenza A virus that can cause highly pathogenic avian influenza (HPAI), also known as bird flu. It's a reassortment strain that originated from the H5N1, H7N9, and H9N2 subtypes.