PHX Reporter

The Maricopa County Department of Public Health (MCDPH) is collaborating with state and federal agencies to address a recent detection of avian influenza in several animals at a zoo collection in Litchfield Park. The public and zoo visitors face a low risk, according to the department.

The Wildlife World Zoo identified the sick animals and involved the Arizona Department of Agriculture for testing. Results suggested that these animals were likely affected by H5N1 avian flu, first observed in wild birds in the United States in 2015. MCDPH is working alongside the zoo to reach out to staff and volunteers who might be at higher risk due to close contact with infected animals.

Dr. Nick Staab, assistant medical director at MCDPH, stated, “People who have job-related exposures to infected animals, especially close prolonged exposure, are at higher risk of infection.” He emphasized that public health's recommendations aim to minimize risk for those directly exposed to infected animals.

In response, MCDPH is offering monitoring and preventive measures for those who had close interactions with sick animals. Concurrently, Wildlife World Zoo has suspended guest activities involving direct animal contact temporarily while implementing enhanced health protocols.

Upon identifying the virus, the zoo initiated several measures including isolating infected or exposed animals and quarantining potentially exposed ones. They also increased biosecurity by restricting access to affected areas and disinfecting enclosures. Monitoring efforts include health checks on all birds and susceptible species as well as testing for illness signs within the enclosure.

Kristy Hayden, president of Wildlife World Zoo, expressed gratitude for limiting the impact through swift action: "While we are deeply saddened to report the loss of a few cherished animals, we are grateful that the impact was limited thanks to our swift response."

Avian influenza H5 affects primarily birds but has been detected previously in Arizona. Human infections are rare but can occur after exposure to sick or dead infected animals. There is no evidence of human-to-human transmission currently.

MCDPH advises precautions such as avoiding unprotected contact with sick or dead animals and maintaining good hand hygiene. Seasonal flu vaccinations are recommended alongside COVID-19 vaccines.

Dr. Staab added that people should remain vigilant during flu season: “We are in the middle of flu season, with other viruses like COVID-19 circulating as well."