The Maricopa County Department of Public Health provides more than 25 health programs and services that protect and promote the health of residents. It prevents health problems by providing childhood immunization and educational services. The department offers information related to nutrition, fitness, family planning, pregnancy, parenting, oral health, safe sex, tobacco use and injury prevention. The Maricopa County Department of Public Health addresses health problems by screening for various illnesses and treating infectious diseases, such as tuberculosis and sexually transmitted diseases. In addition, it provides clinical and maternal, child and family health services. The Maricopa County Department of Public Health is a part of Maricopa County in Arizona, which also operates public works, housing, human service and transportation departments.