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What is Listeriosis Infection?

Listeriosis is a disease caused by a rod-shaped gram-positive bacterium called Listeria that can penetrate inside human cells. The bacterium grows on hard surfaces like uncooked foods and frozen foods. In severe cases it can cause severe food poisoning, meningitis and death.

It can cause foodborne illness, including diarrhea and fever, which can develop 10 to 70 days after exposure. Gastrointestinal symptoms include nausea and vomiting, abdominal pain, fever, chills, vomiting and weight loss.

It can cause short-term and long-term health problems including headaches, muscle pain, loss of appetite, pain or swelling of the breastbone or abdomen, nausea and vomiting, confusion or convulsions.

Can Listeriosis Spread?

So the answer is no, it doesn’t spread.

Listeriosis Test Photo

How to prevent Listeriosis

To prevent Listeriosis it is essential to ensure that you eat food that is: Not grown or processed in warm or hot environments. Not prepared under hygienic conditions. Produced under clean conditions.

Listeriosis is a serious disease that requires quick action if you eat food contaminated by the bacteria. You can control the risk of Listeriosis if you practise these simple and reliable steps:

Don’t eat raw or undercooked meat, fish, shellfish or unpasteurised milk products. When preparing food don’t wash your hands for more than five seconds. The optimal time for hand washing is just one minute. Cook food thoroughly. Don’t freeze cooked foods. Prevent listeriosis by avoiding ready-to-eat foods.

What to do if you get Listeriosis

You may want to ask, how do I know if I have listeriosis?

The Listeria monocytogenes bacteria is spread through: contaminated food – such as ready to eat foods, water or food processing equipment through contact with body fluids inhalation of contaminated air contact with objects that contain contaminated objects. Do not get listeriosis. This is what you should do if you suspect you have listeriosis.

Once in a while, like with anything, Listeria grows out of control and causes millions of people to fall ill all over the world and even kill. The problem is that you can’t see Listeria, so unless you eat something that has been contaminated with Listeria or you have been exposed to it, you can’t tell it is there. This is a problem when it comes to preventing listeriosis and treating it once it starts. The only way to prevent listeriosis is to avoid risk foods. And, these foods are among the most commonly eaten foods on earth.

Mitigation of Listeria or Listeriosis monocytogenes in Ready-to-Eat Meats

Understanding the symptoms

Symptoms of Listeriosis are similar to those of the flu. They include fever, chills, muscle aches, nausea, vomiting, diarrhea, and other gastrointestinal symptoms.

Patients may present with confusion, poor appetite, neck stiffness, stiff neck, vomiting, and abdominal pain, as well as difficulty in breathing, wheezing, or coughing.

People may also experience flu-like symptoms, such as headache, muscle aches, high fever, chills, drowsiness, and confusion.

If you are experiencing listeriosis, seek medical care right away.

Preventing Listeriosis

The following tips can help women protect themselves and their unborn child from Listeriosis:

  • Do not eat hot dogs or lunch meats. If you want to eat them, reheat them until they are steaming hot to rid the food of bacteria.
  • Avoid soft cheese such as brie, feta, or blue-veined. However, other cheeses are okay to consume. Check with your doctors for a full list.
  • Do not eat refrigerated meat spreads.
  • Avoid smoked seafood unless it has been cooked.
  • Never consume unpasteurized milk or any foods made from it.

The Symptoms and Treatment of Listeriosis


Listeria monocytogenes infect the gastrointestinal tract where it enters and kills white blood cells.

The presence of the bacteria within the intestinal wall is the first symptom of infection.

The infection progresses to systemic listeriosis which spreads throughout the body.

The most common symptoms of the Listeria disease are mild diarrhea and muscle pain, fever and nausea.

Treatment Listeria monocytogenes is usually treated with antibiotics. This can be done by starting with antibiotics for the prevention of infection from Listeria monocytogenes bacteria. In some cases, treatment with antibiotics alone is sufficient and in other cases, intravenous administration of antibiotics is required.


Treatment and management is necessary for a Listeria infection. It is essential to remember that these bacteria exist in environments like the intestines, vaginal tract, and foods.

Some measures to reduce the likelihood of getting Listeria include the following:

Clean up your kitchen. The area where your food is prepared should be kept sanitary.

Wash and sanitize food contact surfaces.

Keep raw meat separate from ready-to-eat foods.

Avoid cross-contamination of foods. If you have symptoms such as: Diarrhea Fever, High fever, Nausea Vomiting, Painful stomach, cramps, Vomiting, blood Loss of appetite Ripple-like abdominal cramps. Inflammation of the brain and nervous system (seizures). Loss of mobility.

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When exposed to the air, the bacteria make more white blood cells that form a blood plasma barrier. These are both protective mechanisms and should slow down the spread of the disease if symptoms develop. It is always advisable to wash your hands with soap and water after touching infected products. Listeria can live in refrigerator drawers and in people’s medicine cabinets where the temperature is under 70°F, so it is extremely important to keep the products cold or store in an airtight container after use.

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