San Francisco confirmed that a child in the city became the first case of H5N1. A panel of biotech leaders discussed what options could be taken next.

The US Centers for Disease Control and Prevention is urging hospitals to accelerate advanced testing of people they suspect may have bird flu.

Bird flu is a disease caused by avian influenza A viruses, according to the CDC. The virus mostly spreads between birds and dairy cows, but there have been 67 human cases of bird flu nationwide and one death tied to the infection since 2024, CDC records show.

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

Due to ongoing sporadic H5N1 avian flu infections and brisk levels of seasonal flu activity, the US Centers for Disease Control and Prevention (CDC) today urged healthcare providers to subtype all influenza A specimens in hospitalized patients, especially those in the intensive care unit (ICU), as soon as possible.

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

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.

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 ...

Its alert to doctors and hospitals follows a few rare but mysterious bird flu cases in the US – including, most recently, a child in San Francisco confirmed to have had H5N1 influenza – that ...

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.