The Maricopa County Department of Public Health has confirmed that a person infectious with measles traveled through Phoenix Sky Harbor Airport on Tuesday, June 10.

MCDPH is working with federal, state and airport officials to protect travelers who may have been exposed, according to a release.

“MCDPH is coordinating with other agencies to notify people who may have been exposed so they can watch for symptoms and get care if any develop,” Dr. Nick Staab, chief medical officer for MCDPH, said.

“With a virus as highly infectious as measles, it’s a reminder that we all should stay up-to-date on our vaccines to keep ourselves and those around us safe.”

Details of the public exposure are: 

• Location: Phoenix Sky Harbor Airport, Terminal 4, beyond security checkpoints, Concourses C and D
• Date: Tuesday, June 10, 2025
• Time: 5 p.m. to midnight

Routinely, anyone who was on the same flight as a person with a confirmed case of measles will be notified directly by their local public health department, the release stated, adding:

“Measles can linger in the air for up to two hours after the infectious person leaves, and the stated exposure window includes that time.

“Measles spreads by direct contact with an infected person or through the air when an infected person coughs or sneezes. A person with measles can give the disease to other people even before they feel sick. Measles can cause serious illness, especially in young children, pregnant women and people with depressed immune systems.”

Anyone who may have been exposed should watch for symptoms, which typically appear seven to 12 days after exposure but may take up to 21 days. Symptoms of measles include:

• Fever (101° F or higher)
• Red, watery eyes
• Cough
• Runny nose
• A rash that is red, raised, and blotchy The rash begins after other symptoms, usually on the face at the hairline and moves down the body. The rash may last five to six days.