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One of its best known relatives is Corynebacterium diphtheriae, the causative agent of diphtheria. C. amycolatum is a common component of the natural flora found on human skin and mucous membranes, and therefore is an occasional contaminant in human blood cultures but can rarely cause infections such as endocarditis. [2]
Corynebacterium ulcerans is a rod-shaped, aerobic, and Gram-positive bacterium. Most Corynebacterium species are harmless, but some cause serious illness in humans, especially in immunocompromised humans. C. ulcerans has been known to cause diphtheria and diphtheria-like infections in patients.
Corynebacterium species occur commonly in nature in soil, water, plants, and food products. [3] [16] The non-diphtheroid Corynebacterium species can even be found in the mucosa and normal skin flora of humans and animals. [3] [16] Unusual habitats, such as the preen gland of birds, have been recently reported for Corynebacterium uropygiale. [19]
Skin flora, also called skin microbiota, refers to microbiota (communities of microorganisms) that reside on the skin, typically human skin. Many of them are bacteria of which there are around 1,000 species upon human skin from nineteen phyla. [1] [2] Most are found in the superficial layers of the epidermis and the upper parts of hair follicles.
Appearance of C. xerosis colonies on blood agar. Corynebacterium xerosis is a gram-positive, rod-shaped bacterium in the genus Corynebacterium.Although it is frequently a harmless commensal organism living on the skin and in the mucous membranes, C. xerosis is also a clinically relevant opportunistic pathogen that has been attributed to many different infections in animals and humans.
Corynebacterium striatum is a bacterium that is a member of the Corynebacterium genus. [1] It is classified as non- diphtheritic . [ 2 ] The bacterium is a gram-positive prokaryote that assumes a 'club-like' morphology, more formally known as a corynebacteria structure.
Erythrasma is a superficial skin infection that causes brown, scaly skin patches. It is caused by Corynebacterium minutissimum bacteria, a normal part of skin flora (the microorganisms that are normally present on the skin). There are two types of erythrasma: generalized and interdigital. Interdigital is the most common bacterial infection of ...
The causative organism of caseous lymphadenitis is Corynebacterium pseudotuberculosis. Once successfully established within the host, this pathogen will circumvent the immune system with ease. As a result, it causes chronic infection that may last for most or all of an animal's life, although it is seldom lethal.