U.S. reports 1st outbreak of deadly H7N9 bird flu since 2017

Thomson Reuters

· Posted: Mar 17, 2025 11:29 AM EDT | Last Updated: 10 minutes ago

The United States reported the archetypal outbreak of the deadly H7N9 vertebrate flu connected a poultry workplace since 2017, arsenic the state continues to grapple with different vertebrate flu strain that has infected humans and caused ovum prices to deed grounds highs.

The dispersed of avian influenza, commonly called vertebrate flu, has ravaged flocks astir the world, disrupting proviso and fuelling higher nutrient prices. Its dispersed to mammals, including dairy cows successful the U.S., has raised concerns among governments astir a hazard of a caller pandemic.

The strain that has caused astir harm to poultry successful caller years and the decease of 1 idiosyncratic successful the U.S. is H5N1.

But the H7N9 vertebrate flu microorganism has proved to person a acold higher decease rate, sidesplitting astir 40 per cent of the humans infected since it was archetypal detected successful 2013, the World Health Organization said.

The latest outbreak of H7N9 was detected connected a workplace of 47,654 commercialized broiler breeder chickens successful Noxubee, Miss., the Paris-based World Animal Health Organization said successful a study connected Monday, citing U.S. authorities.

"Highly pathogenic avian influenza (HPAI) H7N9 of North American chaotic vertebrate lineage was detected successful a commercialized broiler breeder chickenhearted flock successful Mississippi. Depopulation of the affected flock is successful progress," the study says.

The U.S. Department of Agriculture's Animal and Plant Health Inspection Service (APHIS), on with authorities carnal wellness and wildlife officials, "are conducting a broad epidemiological probe and enhanced surveillance successful effect to the detection," it added.