The State Department of Agriculture has issued a consumer warning regarding raw milk in Otsego County.
The state says unpasteurized cow milk from the Muddy River Dairy in Otego has tested positive for a harmful Listeria monocytogene bacteria.
The state says Muddy River Dairy is prohibited from selling raw milk until new test samples come back clear.
There have not been any reported illnesses due to this contaminated milk. Potential symptoms include high fever, severe headaches, stiffness, nausea, abdominal pain and diarrhea. Listeriosis can even cause miscarriages or stillbirth in pregnant women.