A measles outbreak that began at Disneyland in December grew to nearly 70 cases on Wednesday. Most of those infected were not vaccinated against the disease. The news follows a Kaiser Permanente study published earlier this week that identified clusters of underimmunization and vaccine refusal around Northern California. We discuss the study's findings and the causes and implications of the measles outbreak.
As Measles Outbreak Spreads, Concerns About Undervaccination Rise
Yvonne Maldonado, chief of infectious disease at Lucille Packard Children's Hospital and professor of pediatrics at Stanford University
Erica Pan, director of communicable disease control and prevention for the Alameda County Department of Public Health
Tracy Lieu, director in the Division of Research, Kaiser Permanente Northern California