Minn. Stat. § 31.171

It shall be unlawful for any person to work in or about any place where any fruit or any food products are manufactured, packed, stored, deposited, collected, prepared, produced or sold, whose condition is such that disease may be spread to associates direct, or through the medium of milk, cream, butter, other food or food products, likely to be eaten without being cooked after handling, whether such condition be due to a contagious or infectious disease, in its active or convalescent stage, or to the presence of disease germs, whether accompanied by, or without, any symptoms of the disease itself.

It shall be the duty of the commissioner, or the commissioner's assistant, inspector, or agent, to report to the state commissioner of health for investigation, any person suspected to be dangerous to the public health, as provided for in this section, and immediately to exclude such person from such employment pending investigation and during the period of infectiousness, if such person is certified by the state commissioner of health, or an authorized agent, to be dangerous to the public health.