1 day ago · In late January, scientists at the World Organization for Animal Health (WOAH) reported the first cases of H5N9 avian influenza in the U.S., on a duck farm in California. The latest strain isn’t ...

Jan 28, 2025 · This is far from the first time that H5N9 has been found in birds around the country. But the U.S. Department of Agriculture said it was the first time that H5N9 had been found in American poultry sick with “highly pathogenic avian influenza,” meaning it caused severe disease. “Clinical signs included increased mortality.

3 days ago · "The combination H5N9 is not new and other versions, like H5N5 also exist," Florian Krammer, a professor of vaccinology at the Icahn School of Medicine at Mount Sinai in New York, told CBS News ...

Jan 28, 2025 · The report is the first emergence of H5N9 in the United States, according to the Center for Infectious Disease Research and Policy. The most recent national data on bird flu from the Centers for Disease Control and Prevention (CDC) confirm 67 human cases of H5N1 in the U.S. since the outbreak began last April, with 1 death reported Jan. 6 in ...

Jan 28, 2025 · If H5N9 gains a foothold in humans, people may possibly have less immunity to the virus than they do to H5N1. "The seasonal, human H1N1 virus has an NA protein that is related, but different from ...

Jan 27, 2025 · Highly pathogenic H5N9 avian flu has been identified for the first time in US poultry, on a duck meat farm in California that experienced an outbreak in November 2024, according to a notification today from the World Organization for Animal Health (WOAH). Both H5N9 and H5N1 were detected at the duck ...

Jan 29, 2025 · "This is the first confirmed case of HPAI H5N9 in poultry in the United States," said Paris-based WOAH, which monitors animal diseases worldwide. It said the outbreak, whose origin was unknown, was confirmed on January 13 and all …

6 days ago · This H5N9 outbreak occurred on a duck farm in Merced, California, and has been reported to the World Organisation for Animal Health.While H5N9 has been found in poultry before, this is the first ...

6 days ago · A new variant, H5N9, recently appeared in California. What should readers know? Yes, a new bird flu variant was discovered at a duck farm in late January. It has the potential to be more virulent for birds and other farm animals. But, it’s important to know that it does not pose any greater risk to humans.

Jan 28, 2025 · Rare bird flu strain found in California raises potential of wider spread. First U.S. detection of virulent H5N9 strain, at a California duck farm, draws scrutiny as evidence of genetic ...