New Bird Flu Strain Detected in U.S.

First Reported H5N9 Bird Flu Outbreak In US As H5N1 Keeps Spreading
While the H5N1 bird flu keep spreading, the first reported H5N9 outbreak in the United States has been identified on a duck farm in California.
What Is H5N9? US Reports First Bird Flu Strain Outbreak in Poultry
The United States has reported its first outbreak of H5N9 bird flu on a duck farm in California, according to the World Organization for Animal Health (WOAH) on Monday. H5N9 is a rare subtype of the influenza A virus that can cause highly pathogenic avian influenza (HPAI),
H5N9 bird flu outbreak: New virus strain detected on California 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.
First US case of rare H5N9 bird flu reported; Difference between H5N1 and H5N9
The United States has reported its first H5N9 bird flu outbreak in California, affecting almost 119,000 ducks. Both H5N9 and the more common H5N1 strains were found. The USDA is conducting investigations and enhanced surveillance,
New Bird Flu Strain Detected in the U.S.
By India Edwards HealthDay Reporter WEDNESDAY, Jan. 29, 2025 (HealthDay News) -- A new strain of bird flu, H5N9, has been detected for the first time in the United States, raising concerns about how it continues to spread.
A new strain of bird flu is found on a California duck farm
A new strain of H5N9 bird flu was detected at a commercial duck operation in California's Merced County. All the ducks were euthanized.
First H5N9 Case Reported In US After Deadly Bird Flu Hits California Duck Farm
Both H5N9 and H5N1 strains of avian flu were identified through tests by the US Department of Agriculture's National Veterinary Services Laboratory (USDA NVSL), after the outbreak was first detected last November.
Newsweek28d
Bird Flu Update: How Regular Influenza May Help Protect You
The highly pathogenic avian influenza virus of the H5N1 subtype is presently among the top viruses of pandemic concern," the authors wrote in the paper. According to the CDC, 66 people across ...
Forbes9mon
Could Avian Influenza Be The Next Covid-19?
A highly pathogenic subtype of avian influenza, known as H5N1, has affected greater than 90 million ... [+] poultry in the United States. In early 2020, a novel virus—now known as SARS-CoV-2 ...
MedPage Today on MSN15d
Amid H5N1, CDC Wants Faster Influenza A Subtyping for Hospitalized Cases
Doctors should use infection control measures if a hospitalized patient has suspected, probable, or confirmed H5N1, putting the patient in an airborne infection isolation room with negative pressure, ...
Salon19d
Is it seasonal influenza or bird flu? Here's how to tell
told Salon H5N1 and other avian influenza viruses are a type A influenza virus. "We do need subtype confirmation to make sure it's ‘H5,’ and sub-type testing is not widely accessible." ...
Science News15d
What bird flu experts are watching for in 2025
Since early 2024, the country has recorded 66 cases of highly pathogenic avian influenza caused by H5N1. Farm workers ... illnesses also arose from the virus subtype D1.1, which is circulating ...
Science Daily4d
Influenza News
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 ...
The Indianapolis Star9d
Bird flu has been spreading worldwide. What's the threat? Here's what the CDC recommends.
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 ...