Understanding Michigan Law about Public Health Orders
The public health code requires health departments to “continually and diligently endeavor to prevent disease, prolong life, and promote the public health . . .” MCL 333.2433(1). This includes “prevention and control of diseases.” MCL
333.2453 of the public health code gives authority to the Local Public Health
Officer to issue public health orders to control
an epidemic and protect public health. When it created the public health code in 1978, the Legislature stated that “this code shall be liberally construed for the protection of the health, safety, and welfare of the people of this state.” MCL 333.1111(2). As far back as 1883, the Legislature authorized local health officers to investigate outbreaks of communicable diseases and mandate sanitary measures to combat the disease. 
Understanding Health Orders
Michigan Department of Health and Human Services - Epidemic Health Orders