Community Health Aide Program records; circa 1960-2000.HMC-1087. The Community Health Aide (CHA) Program was developed in the 1950s in response to a number of health concerns including the tuberculosis epidemic, high infant mortality, and high rate of injuries in rural Alaska. By 2011, the CHA Program consisted of a network of approximately 550 Community Health Aides/Practitioners (CHA/Ps) in over 170 rural Alaskan villages. CHA/Ps work with mid-level providers, physicians, regional hospitals, the Alaska Native Medical Center, and the Alaska Area Native Health Service to provide health-care for communities in Alaska.