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

A California duck farm made headlines this week after the World Organization of Animal Health published a report by U.S. authorities that a strain of bird flu that scientists call H5N9 had been found among sick birds in the flock.

The Centers for Disease Control and Prevention today released an advisory recommending clinicians expedite subtyping of type A influenza samples from hospitalized patients, particularly individuals in an intensive care unit.

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.

This testing tells doctors specifically what subtype ... virus is in the general bucket of ‘influenza A’ to knowing more specifically whether it’s a garden-variety seasonal version of influenza A or, more rarely, a novel version of influenza A like ...

H5N1, or bird flu, poses a limited risk to humans but remains a serious threat. Learn how it spreads, its symptoms, and key precautions to prevent infection.

The Centers for Disease Control and Prevention are monitoring the bird flu situation in the United States. Here's what to know and how to stay safe.

H5N1 first human death was reported in USA. Since then, health authorities have been monitoring and cases and shave sounded alarm regarding its mutation rate.

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

H5N1 bird flu hits Georgia’s poultry industry marking the first commercial outbreak in the state Learn CDC prevention tips to protect public health and livelihoods

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 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 ...