Vagococcus lutrae

Updated : May 31, 2024

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Vagococcus lutrae is rare and found in animals. There are only two human cases so far. One case in the US and another in France. This bacterium needs more study to understand its occurrence.

In the US case, a 75 year old man with blood pressure and cholesterol issues got a groin abscess. With skin inflammation and tissue death after touching tainted water or soil. He was treated with medicines, surgery helped improve his condition.

The French case involved a 64 year old patient. After swimming in a lake, he had fever and upper right abdomen pain. Doctors found inflamed gallbladder and prescribed the antibiotics. Special testing like spectroscopy confirmed these were Vagococcus infections in both cases.

V. lutrae is a gram positive bacterium that is in the Lactobacillales group. The cell wall has a thick peptidoglycan surface that holds the purple stain in staining.

This bacterium has a spherical or oval shape. Vagococcus lutrae survive whether oxygen is present or not. V. lutrae doesn’t produce catalase.

It is a catalase negative and breaks down hydrogen peroxide into water and oxygen. This bacterium moves by flagella, it is a motile bacterium.

Vagococcus lutrae antigenic properties is based on the host and environment. It has traits in different species and habitats, adapting and changing antigens or external particles.

Vagococcus lutrae produce lipopolysaccharides to damage host cells or tissues. The bacterium changes cytokine and gene expression which suppress the immune response. These virulence factors alter V. lutrae‘s antigenic profile and structure.

Vagococcus enters human nasal cavity through breathing. This bacterium tricks our immune system. It releases enzymatic molecules that break down reactive oxygen.

The transmission mode is by inhaling air containing Vagococcus lutrae spores and infection route involves contacting the contaminated daily usage materials present with bacteria via an open wound on the body.

Vagococcus lutrae blocks phagosome and lysosome fusion that prevents being excluded by immune molecules. Masses cause skin edema, openings for pus discharge, which can circulate to bones, muscles, joints, lungs, liver, spleen, and brain, causing bone damage.

They grow as biofilms to linger inside the body longer period.

The human body uses many defenses to fight off the threat from Vagococcus lutrae.

Mucociliary clearance helps remove Vagococcus in the respiratory system from airways by moving mucus and cilia on the respiratory lining.

Coughing also helps clear out Vagococcus lutrae. Alveolar macrophages in the alveoli, ingest and destroy N. donostiensis.

The skin is a barrier against Vagococcus that has many defensive parts like the epidermis, dermis, sebum, and both innate and adaptive immune responses.

The periosteum provides blood supply and immune cells. New bone synthesizing cells repair the damage from Vagococcus. They remove infected or dead bone tissue to make space for new bone growth.

 

Immune cells in the bone fight Vagococcus lutrae by producing chemokines and nitric oxide.

The symptoms are unspecific and is extremely rare and has infected animals and humans.

Fever, coughing, night sweats, and pneumonia are the initial signs and presentations.

The infection appears as open oozing sores, ulcers, rashes, and swollen lymph nodes on the skin in long term diseases patients.

Rarely, bacteria move to vital organs affecting brain, heart, or bones.

Brain infections could cause headaches, confusion, seizures, and impaired nervous system.

 

To detect doctor by looking at its signs and its tissue samples. Can grow the sample in culture media, and molecular tests.

Treating is difficult. it needs surgery and antibacterial medicines.

How well someone does depend on how severe their infection is, the specific bacteria causing it, and whether they can get proper medical care.

Genetic tests like PCR or sequencing can also use to identify the bacteria from its DNA.

Enclose masks or other coverings to avoid inhaling contaminated respiratory droplets. Good respiratory etiquettes help to restrict the direct transmission.

Healthcare workers should strictly use adequate PPE like masks, gloves, and gowns.

It is very important when handling patients or samples possibly contaminated with Vagococcus lutrae, avoiding contact, and spread.

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Vagococcus lutrae

Updated : May 31, 2024

Mail Whatsapp PDF Image



Vagococcus lutrae is rare and found in animals. There are only two human cases so far. One case in the US and another in France. This bacterium needs more study to understand its occurrence.

In the US case, a 75 year old man with blood pressure and cholesterol issues got a groin abscess. With skin inflammation and tissue death after touching tainted water or soil. He was treated with medicines, surgery helped improve his condition.

The French case involved a 64 year old patient. After swimming in a lake, he had fever and upper right abdomen pain. Doctors found inflamed gallbladder and prescribed the antibiotics. Special testing like spectroscopy confirmed these were Vagococcus infections in both cases.

V. lutrae is a gram positive bacterium that is in the Lactobacillales group. The cell wall has a thick peptidoglycan surface that holds the purple stain in staining.

This bacterium has a spherical or oval shape. Vagococcus lutrae survive whether oxygen is present or not. V. lutrae doesn’t produce catalase.

It is a catalase negative and breaks down hydrogen peroxide into water and oxygen. This bacterium moves by flagella, it is a motile bacterium.

Vagococcus lutrae antigenic properties is based on the host and environment. It has traits in different species and habitats, adapting and changing antigens or external particles.

Vagococcus lutrae produce lipopolysaccharides to damage host cells or tissues. The bacterium changes cytokine and gene expression which suppress the immune response. These virulence factors alter V. lutrae‘s antigenic profile and structure.

Vagococcus enters human nasal cavity through breathing. This bacterium tricks our immune system. It releases enzymatic molecules that break down reactive oxygen.

The transmission mode is by inhaling air containing Vagococcus lutrae spores and infection route involves contacting the contaminated daily usage materials present with bacteria via an open wound on the body.

Vagococcus lutrae blocks phagosome and lysosome fusion that prevents being excluded by immune molecules. Masses cause skin edema, openings for pus discharge, which can circulate to bones, muscles, joints, lungs, liver, spleen, and brain, causing bone damage.

They grow as biofilms to linger inside the body longer period.

The human body uses many defenses to fight off the threat from Vagococcus lutrae.

Mucociliary clearance helps remove Vagococcus in the respiratory system from airways by moving mucus and cilia on the respiratory lining.

Coughing also helps clear out Vagococcus lutrae. Alveolar macrophages in the alveoli, ingest and destroy N. donostiensis.

The skin is a barrier against Vagococcus that has many defensive parts like the epidermis, dermis, sebum, and both innate and adaptive immune responses.

The periosteum provides blood supply and immune cells. New bone synthesizing cells repair the damage from Vagococcus. They remove infected or dead bone tissue to make space for new bone growth.

 

Immune cells in the bone fight Vagococcus lutrae by producing chemokines and nitric oxide.

The symptoms are unspecific and is extremely rare and has infected animals and humans.

Fever, coughing, night sweats, and pneumonia are the initial signs and presentations.

The infection appears as open oozing sores, ulcers, rashes, and swollen lymph nodes on the skin in long term diseases patients.

Rarely, bacteria move to vital organs affecting brain, heart, or bones.

Brain infections could cause headaches, confusion, seizures, and impaired nervous system.

 

To detect doctor by looking at its signs and its tissue samples. Can grow the sample in culture media, and molecular tests.

Treating is difficult. it needs surgery and antibacterial medicines.

How well someone does depend on how severe their infection is, the specific bacteria causing it, and whether they can get proper medical care.

Genetic tests like PCR or sequencing can also use to identify the bacteria from its DNA.

Enclose masks or other coverings to avoid inhaling contaminated respiratory droplets. Good respiratory etiquettes help to restrict the direct transmission.

Healthcare workers should strictly use adequate PPE like masks, gloves, and gowns.

It is very important when handling patients or samples possibly contaminated with Vagococcus lutrae, avoiding contact, and spread.

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