Update from the Advisory Committee on Immunization Practices.

The Advisory Committee on Immunization Practices (ACIP), a group of medical and public health experts, meets 3 times per year to develop recommendations for vaccine use in the United States. There are usually 15 voting members; members' terms are for 4 years. ACIP members and Centers for Disease Control and Prevention staff discuss the epidemiology of vaccine-preventable diseases and vaccine research, effectiveness, safety data, and results from clinical trials. Representatives from the American Academy of Pediatrics (Y. A. M., D. W. K.) and the Pediatric Infectious Diseases Society (S. T. O.) are present as liaisons to the ACIP. The ACIP met on 23-24 October 2019 to discuss pertussis vaccines, the child/adolescent and adult immunization schedule, influenza vaccine effectiveness and safety, Ebola vaccine, orthopoxvirus vaccines, Dengue vaccine, rabies vaccine, measles, and vaccine safety update.