Highly pathogenic avian flu, commonly known as bird flu, has been detected in Boston’s Emerald Necklace park system, prompting a public health advisory issued this week by the Boston Public Health Commission.
What You Need to Know
The virus was confirmed in the Emerald Necklace, a 1,100-acre chain of parks spanning Boston and Brookline. While the risk of human infection is currently considered low, officials are urging residents to take precautions.
Symptoms and Risks
According to the Centers for Disease Control and Prevention (CDC), bird flu can cause mild to severe illness in humans, and has, in rare cases, been fatal. Recent U.S. Cases have most commonly presented with eye redness and irritation, alongside symptoms like fever, cough, and muscle aches. People with close or prolonged exposure to infected birds, such as those working in agriculture or wildlife management, are at higher risk.
Bird flu has been present in Massachusetts wildlife since early 2022, and was considered widespread as of January 2025, with workers collecting hundreds of dead birds.
What to Do
The Boston Public Health Commission advises residents to avoid contact with wild birds in Boston parks. Specifically, residents should not feed, touch, or remove birds. Anyone who encounters a sick or injured bird is asked to report it to the city by calling 311 or visiting mass.gov/reportbirds.
Frequently Asked Questions
What is bird flu?
Bird flu, also known as avian influenza, is a virus that primarily affects birds. It can sometimes spread to humans, though this is rare.
Where has bird flu been detected in Boston?
Bird flu has been confirmed in the Emerald Necklace, a 1,100-acre park system spanning Boston and Brookline.
What should I do if I find a sick or dead bird?
Residents should not touch the bird and are asked to report it to the city by calling 311 or visiting mass.gov/reportbirds.
Given the presence of bird flu in the area, what steps will you take to protect yourself and your family when visiting Boston parks?
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