Maricopa County Confirms Six New Public Measles Exposure Sites

In an alarming development, the Maricopa County Department of Public Health (MCDPH) has identified six new locations with potential measles exposure. This exposure stems from an individual who is not a resident of the county but has tested positive for the virus.

As of 2026, Maricopa County has reported 25 confirmed measles cases, a stark increase from the historical average of one case per year over the past three decades. This surge underscores the critical need for vaccination and awareness of early symptoms to curb further spread.

According to Ariella Dale, Ph.D., chief science officer at MCDPH, “The continuing identification of new measles cases and exposures highlights how easily this virus spreads.” She emphasized the effectiveness of the measles vaccine, which has historically prevented such widespread transmission.

Public announcements are made when individuals who might have been exposed in public settings cannot be identified. This allows potentially exposed individuals to take necessary precautions. Updates on exposure sites will be provided through media channels and on the MCDPH online exposure list.

Potential Exposure Locations

The following locations have been identified as possible exposure sites. Those present during the specified times should monitor for symptoms. The virus can linger in the air for up to two hours, so times include this duration.

Location	Date	Time	Monitor Symptoms Until
The Taco Spot 885 N 54th St, Chandler, AZ 85226	July 12	2:30 p.m.–5:45 p.m.	August 2
Sonesta Select Hotel 920 N 54th St, Chandler, AZ 85226	July 12, 4:00 p.m. – July 13, 1:00 p.m.		August 3
Chase Field 401 E Jefferson St, Phoenix, AZ 85004	July 12	7:00 p.m.–midnight	August 2
IHOP 5020 E Ray Rd, Phoenix, AZ 85044	July 13	12:00 a.m.–3:30 a.m.	August 3
bb.q Chicken 1900 W Chandler Blvd, Chandler, AZ 85224	July 13	11:15 a.m.–2:30 p.m.	August 3
Chandler Fashion Center 3111 W Chandler Blvd, Chandler, AZ 85226	July 13	12:30 p.m.–4:30 p.m.	August 3

Recommendations for Those Exposed

Verify Vaccination Status: Ensure you are protected against measles by checking immunization records. If unprotected, consult a healthcare provider about vaccination options. The MMR vaccine is safe and the best defense against measles.

Monitor for Symptoms: Symptoms typically appear 7-12 days post-exposure and may include high fever, red and watery eyes, cough, runny nose, and a rash. Consult healthcare providers for post-exposure prophylaxis if eligible.

If Symptoms Develop: Remain at home and contact a healthcare provider for medical advice and testing. Inform them of your symptoms and potential exposure in advance.

Prevention and Awareness

Measles is preventable with the MMR vaccine, which is typically administered during childhood. Adults should have at least one dose after the age of one. According to CDC guidance, during local outbreaks, infants aged 6-11 months should receive an early MMR dose.

Measles is extremely contagious, lingering in the air for up to two hours. Approximately 90% of unvaccinated individuals will contract measles upon exposure. Serious complications can arise, including subacute sclerosing panencephalitis (SSPE), a severe brain infection.

MCDPH advises healthcare providers to remain vigilant for unvaccinated patients presenting with fever and rash, and to report suspected measles cases to local health authorities within 24 hours.

Essential Measles Facts

The MMR vaccine is the most effective measure against measles.
- 90% of unvaccinated individuals exposed to measles will contract it.
- Vitamin A does not prevent measles.
- In rare cases, vaccinated individuals may contract measles, but with less severity.