CDC and WHO Issue Urgent Measles Alert for Adults, Citing Immunity Gaps and Travel Risks
The Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO) have issued an urgent alert regarding measles risk for adults in the current year. While often considered a childhood disease, adults lacking immunity from vaccination or prior infection are susceptible. Recent surveillance data indicates several adult groups are at higher risk, including unvaccinated adults, healthcare workers, college and university students, international travelers, immunocompromised individuals, and pregnant people. Infants under 12 months also rely on maternal antibodies for protection. Symptoms in adults can be more severe than in children, often presenting with high fever, cough, runny nose, red watery eyes, Koplik’s spots, and a characteristic rash. The alert highlights that recent outbreaks in undervaccinated communities, ongoing vaccine hesitancy, and the rebound of global travel post-pandemic are contributing factors to increased risk.