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Diagnosis and Treatment

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

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Older Adults

Illustration of a person with weakened immune system

People with Weakened Immunity