The County of San Bernardino Department of Public Health (DPH) is promoting Preteen Vaccine Week, February 8-14, 2015. This observance is part of a statewide effort to raise awareness of immunizing 11-12 year-olds against very serious, yet preventable diseases. Preteen Vaccine Week is a great reminder to check preteen’s immunization records and schedule a visit with their medical provider. View the News Release. Ver en español.