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Diagnosis and Testing

Listeriosis is usually diagnosed when a bacterial culture (a type of laboratory test) grows Listeria monocytogenes from a body tissue or fluid, such as blood, spinal fluid, or the placenta.

Listeriosis is treated with antibiotics.

Learn more about treatment of high-risk people  


Who Has a Greater Chance of Listeria Food Poisoning?

	Illustration of a pregnant woman

Pregnant Women

	Illustration of an elderly person with a dog

Older Adults

	Illustration of a person with weakened immune system

People with Weakened Immunity

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