Highly pathogenic avian influenza H5N1 has caused 71 confirmed human cases across 13 US states since 2024, with ongoing exposure through dairy farms and poultry operations. As of June 2026, cases have been confirmed in California, Colorado, Iowa, Louisiana, Michigan, Missouri, Nevada, Ohio, Oregon, Texas, Washington, Wisconsin, and Wyoming. Three cases involved unknown exposure sources. Two deaths have occurred. CDC considers current risk to the general public as low, but monitors closely for signs of person-to-person transmission.
Track Avian Influenza H5N1 (Bird Flu) activity in Arizona in real time.
Get push notifications the moment outbreak conditions change in your area.
H5N1 was first identified in humans in Hong Kong in 1997 during an outbreak linked to live poultry markets. Since 2003, it has caused numerous outbreaks in bird populations across Asia, Africa, and parts of Europe, leading to sporadic but often severe human infections and significant concerns for pandemic potential.
Avian Influenza H5N1 primarily spreads to humans through direct, prolonged contact with infected poultry (live or dead), their secretions (saliva, feces), or contaminated environments (e.g., surfaces in live bird markets). Human-to-human transmission is rare and has not been sustained, but close contact with an infected person might pose a limited risk.
Contagious Period: Varies by disease
Local health department information and state-specific prevention guidance
Our AI-powered surveillance continuously monitors Avian Influenza H5N1 (Bird Flu) activity across Arizona. We track data from state health departments, local hospitals, CDC reports, and 50+ global health sources to provide early warning of emerging threats.
Get instant push notifications when Avian Influenza H5N1 (Bird Flu) activity increases in Arizona or your specific county.
For official state health alerts, vaccination locations, and public health guidance specific to Arizona, visit your state health department's website.
Whether you live in Arizona or are traveling there, knowing the symptoms, timeline, and when to seek care helps you act quickly if exposure occurs.
Seek care if you experience severe dehydration, bloody stools, high fever, or symptoms lasting more than 3 days. Children under 5, adults over 65, and immunocompromised individuals should seek care earlier.
Emergency symptoms: Severe dehydration, inability to keep fluids down for 12 or more hours, or neurological symptoms require emergency care.
Get Avian Influenza H5N1 (Bird Flu) alerts for Arizona.
Know the moment activity changes. Weekly digest included.
Trusted information from leading health organizations
Official guidance from the U.S. Centers for Disease Control and Prevention
View CDC Resources →Global disease surveillance and guidelines from the World Health Organization
View WHO Resources →Disease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.
Last reviewed: 2026-09-08
No confirmed cases reported in Arizona yet. Here are the latest Avian Influenza H5N1 (Bird Flu) reports from our global surveillance network.
Uruguay declares health emergency for avian influenzaAuthorities restrict poultry movement, suspend public events following detection of H5 virus Uruguay declared a nationwide health emergency on Friday after the discovery of the highly pathogenic H5 avian influenza in backyard …
The deadly H5N1 bird flu virus responsible for decimating bird and seal populations around the globe has been detected in Sydney. A pair of greater crested terns tested positive for the H5N1 bird flu at Port Kembla and Warriewood on Sydney's Northern Beaches, the NSW government …
Australia confirmed its first case of H5N1 in June in a migratory brown skua, a sub-Antarctic species on the country's southern coast. Since then, the disease has rapidly spread. To date, there have been 309 confirmed bird flu events, official data shows (the country is not coun…
The boss of Australia's largest chicken producer has issued a stark warning over poultry prices as the H5 bird flu crisis continues to take hold. Edward Alexander, chief executive of Ingham's Group, this week told shareholders that industry costs are on the up, irrespective of w…
Why is the detection of H5N1 in a seal significant for Australia? The seal, one of an estimated population of 100,000 in the state's waters, was found dead with no signs of injury, the authorities said. Its death "does not appear to be associated with other sick or dead marine …
A second potential case of H5N1 bird flu has been detected in a migratory bird in Queensland. A deceased shearwater was found on Noosa's Castaway Beach and, after initial testing, returned positive for bird flu on Monday night. The testing was completed at the Queensland Govern…
Twenty-four tradies, scientists and support staff are stationed at Macquarie Island, located in the Southern Ocean about 1500km southeast of Tasmania. Australia's icebreaking research and supply vessel, RSV Nuyina, will travel to the island in the next two months to evacuate the…
SYDNEY: Australian wildlife workers have launched an unprecedented effort to vaccinate wild populations of little penguins against the highly contagious H5N1 avian influenza. Hundreds of thousands of tourists a year flock to viewing areas and boardwalks to watch the diminutive s…
Receive instant push notifications when Avian Influenza H5N1 (Bird Flu) activity increases in Arizona or your travel destinations. Track 200+ diseases with location-based alerts. Used by healthcare systems, EMS, schools, and travelers worldwide.
Open Web App Enterprise Solutions