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

Lithuania has reported an outbreak of highly pathogenic H5N1 avian influenza, commonly called bird flu, on a laying hen farm in the western part of the country, the World Organisation for Animal Health (WOAH) said on Wednesday.

The United States reported a first outbreak of H5N9 bird flu on a poultry farm, the World Organisation for Animal Health said on Monday. Highly pathogenic avian influenza, commonly called bird flu, has spread around the globe in the past years,

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 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.

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.

Lithuania has experienced a severe outbreak of H5N1 avian influenza, or bird flu, on a farm in the Silute district, resulting in the death of 20,000 birds and the culling of all remaining birds. This incident heightens concerns over disruptions in the poultry industry globally.

Commercial duck flock in California has tested positive for two strains of avian influenza. On November 23, 2024, two HPAI viruses were identified in samples from a farm rearing meat ducks in Merced County in California. Increased mortality was observed at the premises, leading the state veterinary authority to quarantine the farm.

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.

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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.