Willow Marsh Farm has ceased sales of its unpasteurized, raw milk after tests showed it was positive for Listeria monocytogenes.

The New York dairy announced the test results on its Facebook page. The dairy had been awaiting confirmation test results, which it received on March 4.

All milk sold between Feb. 26 and March 2 should not be consumed and should be thrown away, according to the statement.

“We are now replacing milking equipment parts just in case it is there,” according to the dairy’s statement.

about Listeria infections
Food contaminated with Listeria monocytogenes may not look or smell spoiled but can still cause serious and sometimes life-threatening infections. Anyone who has consumed any raw milk from the dairy and developed symptoms of Listeria infection should seek medical treatment and tell their doctors about the possible Listeria exposure.

Also, anyone who has consumed any of the raw milk should monitor themselves for symptoms during the coming weeks because it can take up to 70 days after exposure to Listeria for symptoms of listeriosis to develop. 

Symptoms of Listeria infection can include vomiting, nausea, persistent fever, muscle aches, severe headache, and neck stiffness. Specific laboratory tests are required to diagnose Listeria infections, which can mimic other illnesses. 

Pregnant women, the elderly, young children, and people such as cancer patients who have weakened immune systems are particularly at risk of serious illnesses, life-threatening infections, other complications and death. Although infected pregnant women may experience only mild, flu-like symptoms, their infections can lead to premature delivery, infection of the newborn, or even stillbirth.