Phoenix – An Arizona Department of Agriculture official said there was another case of avian influenza detected in the state.

What we know:

Poultry on a commercial farm in Maricopa County tested positive for the virus, according to a statement released on the afternoon of May 20th.

“When poultry began to show clinical signs consistent with avian influenza on May 15, 2025, samples from that location were submitted to the Arizona Veterinary Diagnostic Lab (AZVDL) for preliminary decisions and then submitted to the National Veterinary Office’s Institute (NVSL) and received a statement on May 19 for confirmation.

Agricultural officials in the state said eggs were produced after “onset of clinical signs of the disease” did not enter the food supply. Furthermore, humans had no signs of illness.

What they are saying:

“The affected poultry farms are in quarantine by the recommendations of the Director of Azda and the veterinarians in Azda,” read some of the Azda statement. “Enhanced biosecurity measures are in place and efforts are underway to eliminate the virus. All applicable hygiene measures have been implemented promptly. Our dedicated and experienced team continues to monitor the situation closely to ensure that consumer protection is maintained at all times.”

Things we don’t know:

Azda officials did not identify the farm where the affected poultry was located.

Previous detections reported in Maricopa County

This is not the first time avian influenza has been detected in Maricopa County and other surrounding areas.

Dive deeper:

In 2024, there were at least five incidents, including the avian flu.

On November 15, Arizona Department of Agriculture officials said poultry on a commercial farm in Pinal County. Positive bird flu test.

A few weeks later, on November 25th, a state health agriculture official said. Backyard herds in Maricopa County tested positive Anti-virus.

December 6th, State health officials said two people “exposed to poultry infected while working at a commercial facility in Pinal County” have tested positive for the avian flu.

On December 11th, Maricopa County health officials say bird flu Probably died Of the five animals on the Wildlife World Zoo, Maricopa County Health Authorities reported that “influenza subtypes associated with avian influenza” were found in the county’s wastewaters.

2025, A virus has been found Milk produced by a herd of cows in Marikoipa County. However, authorities at the time said that the genotype of the virus in milk “has no characteristic that makes it more likely to infect humans.”

What you can do:

Azda officials said anyone who sees signs of illness in poultry should report it to the US Department of Agriculture by calling a hotline for sick birds at 1-866-536-7593. People can call the Arizona Games and Fish department for diseases, including wild birds.