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A bacterial infection caused by Listeria monocytogenes. It occurs in newborns, elderly, and immunocompromised patients. The bacteria are transmitted through ingestion of contaminated food. Clinical manifestations include fever, muscle pain, respiratory distress, nausea, diarrhea, neck stiffness, irritability, seizures, and lethargy

Symptoms of Listeriosis

The following features are indicative of Listeriosis:
  • fever
  • muscle aches
  • nausea
  • diarrhea
  • headache
  • stiff neck
  • confusion
  • loss of balance
  • convulsions

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Common Causes of Listeriosis

The following are the most common causes of Listeriosis:
  • use of contaminated raw vegetables
  • use of contaminated animal meat
  • unpasteurized milk
  • infection from the mother via the placenta

Risk Factors for Listeriosis

The following factors may increase the likelihood of Listeriosis:
  • miscarriage
  • stillbirth
  • premature birth
  • fatal infection after birth
  • age>60 years
  • AIDS
  • undergoing chemotherapy
  • diabetes
  • kidney disease

Prevention of Listeriosis

Yes, it may be possible to prevent Listeriosis. Prevention may be possible by doing the following:
  • proper washing of hands
  • cook food thoroughly
  • proper cleaning of vegetables

Occurrence of Listeriosis

Number of Cases

The following are the number of Listeriosis cases seen each year worldwide:
  • Very common > 10 Million cases

Common Age Group

Listeriosis most commonly occurs in the following age group:
  • Aged > 50 years

Common Gender

Listeriosis can occur in any gender.

Lab Tests and Procedures for Diagnosis of Listeriosis

The following lab tests and procedures are used to detect Listeriosis:
  • Spinal fluid Culturing: Helps to detect the bacteria in amniotic fluid, blood, feces, urine

Doctor for Diagnosis of Listeriosis

Patients should visit the following specialists if they have symptoms of Listeriosis:
  • Infectious Disease Specialist

Complications of Listeriosis if untreated

Yes, Listeriosis causes complications if it is not treated. Below is the list of complications and problems that may arise if Listeriosis is left untreated:
  • septicemia
  • meningitis

Self-care for Listeriosis

The following self-care actions or lifestyle changes may help in the treatment or management of Listeriosis:
  • Proper washing of hands: Helps in prevention of bacterial infections
  • Proper scrubbing of raw vegetables: Helps in reducing bacterial infections
  • Cook food thoroughly: Helps in killing bacteria

Time for Treatment of Listeriosis

While time-period of treatment for each patient may vary, below is the typical time-period for Listeriosis to resolve if treated properly under an expert supervision:
  • In 1 - 3 months

Is Listeriosis Infectious?

Yes, Listeriosis is known to be infectious. It can spread across people via the following means:
  • bacterial infection spread through contaminated food and unpasteurized milk

Last updated date

This page was last updated on 2/04/2019.
This page provides information for Listeriosis.
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