Helicobacter cellulitis is a cutaneous condition caused by Helicobacter cinaedi . 280H. cinaedi can cause cellulitis and bacteremia in immunocompromised people.:
Helicobacter cinaedi is a bacterium in the family Helicobacteraceae, Campylobacterales order. It was formerly known as Campylobacter cinaedi until molecular analysis published in 1991 led to a major revision of the genus Campylobacter. H. cinaedi can cause cellulitis and bacteremia in immunocompromised people.
Cellulitis is a bacterial infection involving the inner layers of the skin. It specifically affects the dermis and subcutaneous fat. Signs and symptoms include an area of redness which increases in size over a few days. The borders of the area of redness are generally not sharp and the skin may be swollen. While the redness often turns white when pressure is applied, this is not always the case. The area of infection is usually painful. Lymphatic vessels may occasionally be involved, and the person may have a fever and feel tired.
Bacteremia is the presence of bacteria in the blood. Blood is normally a sterile environment, so the detection of bacteria in the blood is always abnormal. It is distinct from sepsis, which is the host response to the bacteria.
Erysipelas is an acute infection typically with a skin rash, usually on any of the legs and toes, face, arms, and fingers. It is an infection of the upper dermis and superficial lymphatics, usually caused by beta-hemolytic group A Streptococcus bacteria on scratches or otherwise infected areas. Erysipelas is more superficial than cellulitis, and is typically more raised and demarcated. The term is from Greek ἐρυσίπελας, meaning "red skin". In animals, erysipelas is a disease caused by infection with the bacterium Erysipelothrix rhusiopathiae. Erysipelothrix rhusiopathiae can also infect humans, but in that case the infection is known as erysipeloid.
Campylobacter jejuni is one of the most common causes of food poisoning in Europe and in the United States. The vast majority of cases occur as isolated events, not as part of recognized outbreaks. Active surveillance through the Foodborne Diseases Active Surveillance Network (FoodNet) indicates that about 14 cases are diagnosed each year for each 100,000 persons in the population. The European Food Safety Authority estimated in 2011 that there are approximately nine million cases of human campylobacteriosis per year in the European Union.
A boil, also called a furuncle, is a deep folliculitis, infection of the hair follicle. It is most commonly caused by infection by the bacterium Staphylococcus aureus, resulting in a painful swollen area on the skin caused by an accumulation of pus and dead tissue. Boils which are expanded are basically pus-filled nodules. Individual boils clustered together are called carbuncles. Most human infections are caused by coagulase-positive S. aureus strains, notable for the bacteria's ability to produce coagulase, an enzyme that can clot blood. Almost any organ system can be infected by S. aureus.
Campylobacter fetus is a species of Gram-negative, motile bacteria with a characteristic "S"-shaped rod morphology similar to members of the genus Vibrio. Like other members of the genus Campylobacter, C. fetus is oxidase-positive.
Infection of the skin is distinguished from dermatitis, which is inflammation of the skin, but a skin infection can result in skin inflammation. Skin inflammation due to skin infection is called infective dermatitis.
Aeromonas is a genus of Gram-negative, facultative anaerobic, rod-shaped bacteria that morphologically resemble members of the family Enterobacteriaceae. Most of the 14 described species have been associated with human diseases. The most important pathogens are A. hydrophila, A. caviae, and A. veronii biovar sobria. The organisms are ubiquitous in fresh and brackish water.
Periorbital cellulitis, also known as preseptal cellulitis, is an inflammation and infection of the eyelid and portions of skin around the eye anterior to the orbital septum. It may be caused by breaks in the skin around the eye, and subsequent spread to the eyelid; infection of the sinuses around the nose (sinusitis); or from spread of an infection elsewhere through the blood.
Mycobacterium marinum is a free-living bacterium, which causes opportunistic infections in humans. M. marinum sometimes causes a rare disease known as aquarium granuloma, which typically affects individuals who work with fish or keep home aquariums.
Vibrio alginolyticus is a Gram-negative marine bacterium. It is medically important since it causes otitis and wound infection. It is also present in the bodies of animals such as pufferfish, where it is responsible for the production of the potent neurotoxin, tetrodotoxin.
Ecthyma gangrenosum is a type of skin lesion characterized by vesicles or blisters which rapidly evolve into pustules and necrotic ulcers with undermined tender erythematous border. "Ecthyma" means a pus forming infection of the skin with an ulcer, "gangrenosum" refers to the accompanying gangrene or necrosis. It is pathognomonic of Pseudomonas aeruginosa bacteremia. Pseudomonas aeruginosa is a gram negative, aerobic bacillus.
Eosinophilic cellulitis, also known as Wells' syndrome, is a skin disease that presents with painful, red, raised, and warm patches of skin. The rash comes on suddenly, lasts for a few weeks, and often repeatedly comes back. Scar formation does not typically occur.
Anaerobic infections are caused by anaerobic bacteria. Obligately anaerobic bacteria do not grow on solid media in room air ; facultatively anaerobic bacteria can grow in the presence or absence of air. Microaerophilic bacteria do not grow at all aerobically or grow poorly, but grow better under 10% carbon dioxide or anaerobically. Anaerobic bacteria can be divided into strict anaerobes that can not grow in the presence of more than 0.5% oxygen and moderate anaerobic bacteria that are able of growing between 2 and 8% oxygen. Anaerobic bacteria usually do not possess catalase, but some can generate superoxide dismutase which protects them from oxygen.
Helicobacter canis is a bacterium in the Helicobacteraceae family, Campylobacterales order. Its type strain is NCTC 12739T. It colonises the lower bowel, but is also present in cases of hepatitis. Besides infecting dogs, this bacterium is known to cause infections in immunocompromised humans.
Acinetobacter lwoffii, formerly known as Mima polymorpha or Acinetobacter calcoaceticus var. lwoffii, is a non-fermentative Gram-negative bacillus bacterium that is a member of the genus Acinetobacter. It is considered normal skin flora and can also inhabit the human oropharynx and perineum of up to 25% of the population. It can cause infections in human hosts, particularly catheter-associated infections in immunocompromised patients. It has also been associated with at least one case of gastroenteritis. Due to its ability to survive dry conditions, low pH, and a wide range of temperatures, A. lwoffii, along with A. johnsonni, has been found in frozen food, bacon, eggs, pasteurized milk, and fish. It is also resistant to many disinfectants, irradiation, and desiccation.
Bergeyella is a rod-shaped, Gram-negative, aerobic, non-spore-forming and non-motile genus from the family of Flavobacteriaceae.
Bergeyella zoohelcum is a Gram-negative, rod-shaped, aerobic and non-motile bacterium from the genus of Bergeyella which occurs in the upper respiratory tract of dogs and cats Bergeyella zoohelcum can cause respiratory disease in cats. Bergeyella zoohelcum can cause infections after dog bites.
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