August
12
22:24
Infectious diseases

Listeriosis - infection and disease symptoms

Listeriosis is an infectious disease belonging to the group of zoonoses.Current human disease occurs either in the form of acute sepsis (when affecting the central nervous system, tonsils, lymph nodes, liver, spleen) or chronic (erased).

Symptoms of listeriosis

most common form of adult listeriosis is meningitis, in which inflamed membranes that cover the brain and spinal cord.In 20% of cases, the formation of brain abscess.It is accompanied by symptoms of meningitis include fever and neck stiffness, ieinability to tilt your head forward.If untreated, the disease, there is the development of confusion and the emergence of a coma.Perhaps death.

Sometimes Listeria causes inflammation of the eyes, so that they turn red, and you receive their pain.After that, the propagation of pathogens to the lymph nodes, getting them into the bloodstream and meninges.Rarely when Listeria infection of the heart valves revealed heart failure.

As the symptoms of listeriosis

Symptoms of listeriosis include diagnosis:

  • heart failure,
  • redness of the eye (conjunctiva),
  • fever,
  • identification stiff neck,
  • offensive coma,
  • dizziness.

If listeriosis infected newborn child, the disease is characterized by severe.

Symptoms of Listeriosis of newborns is:

  • high fever,
  • respiratory distress and circulatory system: dyspnea, cyanosis, voiceless heart tones,
  • symptoms persist,
  • mucous stool,
  • exanthema bearing rozeolёzno-papular character.

If developed purulent meningitis, in most cases, the baby dies.

Home listeriosis in infants is similar to the symptoms of SARS, in which the body temperature rises, runny nose, cough, and then observed the development of small focal pneumonia or purulent pleurisy.Some patients revealed rash, maculo-papular possessing character, enlarged liver, jaundice, meningeal symptoms.In some cases, there are convulsions, paralysis develops.Characteristic monocytosis in hemogram rare.

listeriosis

Listeria present in the environment, in the intestines of spiders, birds, shellfish and mammals.In the human intestine are absent.People listeriosis can be struck almost any organ.The most susceptible to listeriosis are considered infants, people with damaged or weakened immune systems, and people over 70 years.Typically, the occurrence of the disease occurs in July and August.Transmission Listeriosis usually occurs when a person consumes contaminated dairy products or raw vegetables.The causative agent of listeriosis

is a mobile Gram-positive rods nonsporeforming Listeria monocytogenes, referring to the typical species of the genus Listeria.Perhaps a capsule transforming it into an L-shape and in parasitized cells than is caused by the slow development of a latent infection.Listeria are microaerophiles.They undemanding and grow in normal environments, even at room temperature.

transmission of listeriosis can be carried out in various ways:

  • fecal-oral;
  • contact;
  • airborne;
  • transplacental.

The causes listeriosis in animals can be the use of water and feed infected with Listeria, as well as transmission of the disease from rodents or their corpses.A certain value in maintaining stationary foci of disease belongs to the bloodsucking insects, especially mites pasture.Are infected by rodents and other animals sick, they contribute to the infection from spreading, transmitting the bacteria to other animals.

Infection with listeria meat

For reasons of listeriosis in humans is infected alimentary by means of the use of contaminated water and food with animal origin, especially if they no reliable thermal processing and storage is carried out at a relatively low temperature for a long time.A person can become infected with listeriosis if it is to eat fresh vegetables.In addition, it is possible aerogenic infection occurring during the processing of animal raw materials (bristle, wool, hides, leather, down, feathers).

also cause listeriosis can be a contact path which through cuts and abrasions in the skin, when they fall into different isolation of sick animals.The bacteria can be transmitted from person to person, established cases of infection through sex.Listeriosis is particularly dangerous for pregnant women due to the fact that it is possible perinatal transmission of the pathogen from mother to child.A case of postpartum aerogenic, food and contact infection from mother to newborn, medical personnel or environmental objects infected by them.

Treatment of listeriosis

As a rule, the treatment of listeriosis is performed using penicillin.In case of defeat in the disease of the heart valves, provided for the appointment of a second antibiotic, such as tobramycin.If it affects the patient's eyes can be used inside erythromycin.

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