A person with measles was at this store in Scottsdale, AZ

Key Points:

• A confirmed measles case visited a Walgreens in Scottsdale on Sept. 8, prompting health officials to advise anyone present between 8 a.m. and 10:25 a.m. to monitor for symptoms through Sept. 29.
• Maricopa County has recorded 28 measles cases this year, a significant increase from its usual average of one case annually, contributing to Arizona's statewide total of 123 cases as of mid-September.
• The rise in measles cases is linked to lower vaccination rates, especially among schoolchildren in Arizona, and increased vaccine hesitancy influenced by misinformation and public distrust.
• Measles is highly contagious, with about 90% of unvaccinated exposed individuals likely to become infected; the disease is preventable through two doses of the MMR vaccine, with early vaccination recommended for infants aged 6 to 11 months.
• Public health officials emphasize the importance of vaccination and preventive measures to protect vulnerable populations, including infants, pregnant women, and immunocompromised individuals, against serious complications from measles.