The department of health and senior services shall maintain a bureau of vital statistics, a bureau of laboratories, a bureau of communicable diseases, a bureau of food and drug inspection, a bureau of child hygiene, a bureau of public health nursing, a bureau of tuberculosis control, a bureau of cancer control, a bureau of dental health, and other bureaus as may be necessary from time to time. The director of the department shall formulate orders and findings for the proper conduct of the bureaus.