Sean O'Leary
Sean O'Leary is a Professor of Pediatrics and Infectious Diseases at the University of Colorado School of Medicine and serves as Vice Chair of the American Academy of Pediatrics Committee on Infectious Diseases. He is a leading expert on childhood vaccinations and immunization policy, frequently advising on vaccine safety and public health guidelines.
Claims from Sean O'Leary
Sean O'Leary“I’m not sure why they want to bring the diseases back but that’s their goal.”Jan 05, 2026