Coryneform bacilli, also known as diphtheroids, are Gram-positive, irregular rod-shaped bacteria that encompass a wide range of genera, such as Corynebacterium, Brevibacterium, Dermabacter, Microbacterium, and Cellulomonas.
Many species are part of the normal flora of the skin and mucous membranes of humans and animals. Other coryneform bacilli have been found in the inanimate environment, e.g. dairy products, plants, soil, and activated sludge. Other than Corynebacterium diphtheriae, which is a noted human pathogen, the other coryneform bacilli typically cause opportunistic infections in immunocompromised or debilitated hosts.
These organisms can be found as part of the microflora of cleanrooms, originating from personnel particularly in settings with inadequate climate control. Warm indoor temperatures coupled with typical pharmaceutical garb, can cause personnel to sweat and discharge corynebacteria and staphylococci, which are the most prevalent aerobic bacteria in the axillae.
At U.S. Micro Solutions, our microbiology laboratory is a licensed, accredited source for thorough and accurate environmental testing, including USP 797, Legionella, indoor air quality, healthcare & medical device, water analysis, and identification of specific pathogens. Visit our Laboratory Services page to learn more.
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