November 20, 2011

Listeria Innocua

Listeria innocua is one of the six species included in the genus Listeria. Is mostly found in the environment (such as soil) and food resources. You can live in pH and temperature extremes and high salt concentrations. In terms of appearance, it is a rod-shaped Gram-positive bacteria. It is a spore-forming bacteria. Can a person live in a chain or other bacteria Listeria innocua. This is a mesophilic, operating at an optimum temperature of 30 to 37 degrees Celsius. Listeria innocua closely resembles that of family members, Listeria monocytogenes pathogenicity. Listeria innocua separately from meat through a technique called immunofluorescence, surface adherence. The meat samples inoculated with L. innocua and incubated at 30 ° C for 14-18 hours in the broth. The cells are separated from the flesh by the adhesion to the surface of polycarbonate membrane attached to glass microscope slides. After immunofluorescence microscopy was used to visualize the bacteria. Listeria innocua important because it is similar to foodborne L. monocytogenes pathogens, but non-pathogenic. This genome was sequenced to compare the genomes of L. monocytogenes pathogen to know why the past. Listeria Pregnancy

Listeria innocua is a circular chromosome of 3,011,209 base pairs with a G + C content of 37% Only the 2973 protein-coding genes in L. innocua, while the function can not be predicted 37% of the genes. Genome encodes a set of regulations, and the surface transport proteins. This explains why Listeria species can adapt and live in environments so different. Listeria innocua hatred found that less than 10 kb, a group of genes that lead to the pathogenicity of Listeria monocytogenes. This explains why L. innocua usually do not infect humans or animals. It also has a 81,905 base pair circular plasmid of unknown function.

November 17, 2011

What Causes Listeria?

What Causes Listeria - The bacteria causes is common among wild animals, pets, and soil and water. The bacteria makes many animals sick and often leads to miscarriage and stillbirth in domestic animals.

Vegetables, meat and other foods you eat may be infected with the bacteria come into contact with contaminated soil or fertilizer. Raw milk or products made from raw milk can contain bacteria.

First, you must complete a blood or urine. It is often the most effective way to help the doctor to see whether or not infected with the bacteria.

Second, provide samples of CSF culture and CSF. The techniques will help doctors to determine if the Listeria bacteria are the cause of the infection of the meninges. No way, no test to determine whether meningitis is caused by listeria or other reasons.

A lumbar puncture, also known as lumbar puncture is used to test a sample of fluid from the spinal cord. This interruption is called cerebrospinal fluid surrounding the brain and spinal cord. Helps support and protect the brain and spinal cord.

If you are pregnant, have tested the amniotic fluid. Provide samples of amniotic allows doctors to see the presence of Listeria bacteria in the placenta and check that the disease may have an effect endanger your baby. More article: Listeria Outbreak

Listeria Meningitis

Listeria meningitis is a serious disease that affects pregnant women, children and adults whose immune systems have been compromised. Pregnant women with the bacteria may experience a premature birth abortion, miscarriage or stillbirth. If a pregnant woman carries the bacteria in the vagina, the baby will become infected during the birth process. Listeria meningitis be acute or cause severe brain damage and other permanent disabilities. This can cause damage to the brain stem, cerebral edema and spinal cord injuries, and has a mortality rate of about 70%.


Listeria meningitis caused by the bacterium Listeria monocytogenes is found in soil, plants, food, and water flow. If the soil, plants and animals may be infected. Can be found in raw meat and vegetables, and unpasteurized milk and foods made from unpasteurized milk. Pasteurization and cooking great food will kill the bacteria, but people can still find food contaminated before the packaging process. This bacterium Listeria often manifested as meningitis.


The most common symptom Listeria meningitis stiff neck, high fever and headache. You may also experience nausea, vomiting or drowsiness. In children, symptoms may be difficult to find. You can only see the baby sleep, irritable, or not eating well. When symptoms begin, develop rapidly in adults and children, anywhere from several hours to 1-2 days. However, it may take up to two months after eating contaminated food before we see any symptoms at all.


Do not do to avoid Listeria meningitis if you eat foods that are processed or packaged from the store or restaurant. However, if you cook your own meals, there are things you can do to minimize the risk of listeria bacteria. Be sure to wash raw vegetables, cook meat and always drinking and cooking with pasteurized milk. Thus, it is more likely that each bacterium Listeria in food are broken down.


Early diagnosis is important. If you see any of the above symptoms, it is important to consult your doctor immediately. Your doctor will likely order a lumbar puncture, fluid from bacteria growing in a test of Listeria meningitis. It can be treated with common antibiotics such as ampicillin or azithromycin, but must begin immediately to be effective. Read more article Listeria Outbreak

November 14, 2011

Listeria Infection

Listeria is a bacterium found primarily in soil and water. According to the CDC, the vegetables can contaminate the soil or from manure used as fertilizer. Animals carrying the bacteria can also contaminate food. Listeria is found in a wide variety of raw foods such as meats and vegetables and processed foods that become contaminated after processing, such as soft cheeses (like feta and blue cheese are destroyed) and cold sores.

Unpasteurized milk or foods made from unpasteurized milk may also be a source of listeria infection. Listeria is killed by pasteurization and heating procedures used to prepare ready to eat processed meats should be sufficient to kill bacteria. However, unless the practice of good manufacturing practices followed, contamination can occur even after processing.

According to the CDC, an estimated 2,500 people in the U.S. of serious illness from listeria infections each year, and with it, 500 will die. CDC reports that have a higher risk of developing listeriosis include:

  • Pregnant women.
  • People with weakened immune systems.
  • People with cancer, diabetes or kidney disease.
  • People with AIDS.
  • People, such as people with asthma, who took the steroid medicine.
  • The elderly.

Symptoms of listeriosis can include:

  • Fever.
  • Muscle pain.
  • Nausea.
  • Diarrhoea.
  • If infection spreads to listeria nervous system (brain and spinal cord), symptoms may appear as follows:
  • Headache.
  • Stiffness in the neck.
  • Confusion.
  • Loss of balance.
  • Convulsions.

Infected pregnant women may experience only mild flu symptoms, however, infections during pregnancy can cause premature birth, infection of the newborn, or even stillbirth. There is no regular testing to determine if they are prone to Listeria infections during pregnancy. If you have symptoms of listeriosis, consult your doctor immediately. Read more article: Listeria Outbreak 

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