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

The country's recent bird flu cases were linked to influenza A (H5N1). Cleveland Clinic states the types of proteins on the surface of the virus determine subtype names. ∎ Breathing it in from ...

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 Philippines is once again banning poultry imports from South Dakota, United States, following a bird flu outbreak, the Department of Agriculture announced Thursday, .

According to the Centers for Disease Control and Prevention, 67 people in the U.S. have been infected with H5N1 bird flu. One person has died.

A subtype of bird flu caused by avian influenza A (H5) virus has been spreading worldwide ... including avian influenza A(H5N1), have gained the ability to spread easily and sustainably among ...

The findings come at a time when outbreaks of bird flu -- a different subtype of the ... of the highly pathogenic avian influenza (HPAI) H5N1 influenza virus currently circulating

A subtype of bird flu caused by avian influenza A (H5) virus has been spreading worldwide ... including avian influenza A(H5N1), have gained the ability to spread easily and sustainably among ...

This pathogenic avian influenza A is a subtype that is found in cows ... with highly pathogenic avian influenza (HPAI) A, H5N1 virus that primarily causes bird flu, has a high potential for ...

H5N9 is a rare strain of avian influenza. H5N1 is the more ... "Whether this novel H5N9 virus will cause human infections from its avian host and become a pandemic subtype is not known yet.

The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a newer variant of the H5N1 virus. That variant is called H5N1 D1.1, the USDA spokesperson said, which has emerged over the past year to dominate U.S. cases in wild birds and poultry.