Last updated on June 21st, 2021Clostridium perfringens is a gram-positive, anaerobic, endospore-forming bacilli, often appear as boxcar shaped. It is mainly responsible for myonecrosis (gas gangrene), food poisoning, and gangrenous cholecystitis. Properties Gram staining: Gram-variable […]
Last updated on June 21st, 2021Clostridium tetani is an obligate anaerobic, gram-positive bacillus with terminal round spore (drum stick appearance). It is the causative agent of tetanus, a vaccine-preventable disease that classically follows a puncture […]
Last updated on June 21st, 2021Clostridium botulinum is gram-positive, endospore-forming bacilli which resemble a tennis racket appearance due to the presence of spores at the sub-terminal end. It produces an extremely lethal neurotoxin called botulinum […]
Last updated on May 30th, 2021Clostridium perfringens is a Gram-positive, anaerobic, spore-forming rod. It produces at least 12 different toxins, which are broadly classified as “major toxins” and “minor toxins”. Certain strains also produce enterotoxin and neuraminidase. […]
Last updated on June 21st, 2021Anaerobic infections range from local abscesses to life-threatening infections. In most of the cases, our own normal flora (i.e. endogenous origin) are involved but in some exogenous sources play a […]
Last updated on June 21st, 2021Robertson’s Cooked Meat (RCM) medium is used for the cultivation of aerobic, microaerophilic, and anaerobic microorganisms, especially Clostridium species. It is also known as cooked meat broth (CMB) as it […]
Last updated on June 21st, 2021Microorganisms can produce different types of volatile compounds that may give characteristics smell, pleasant scent, or pungent odor. Production of these volatile chemicals depends on the metabolic characteristics of that […]
Last updated on June 21st, 2021Thioglycollate broth is the enrichment broth most frequently used in diagnostic bacteriology. This broth supports the growth of anaerobes, aerobes, microaerophilic, and fastidious microorganisms. It contains many nutritive factors, including […]
Last updated on May 30th, 2021McIntosh and Fildes’ anaerobic jar is an instrument used in microbiology laboratory, for the generation of anaerobic conditions (anaerobiosis) to culture obligates anaerobes such as Clostridium spp. Anaerobiosis obtained by […]
Last updated on May 30th, 2021Clostridioides (formerly Clostridium) difficile causes life-threatening diarrhea. Clostridioides difficile infection (CDI) is a leading cause of hospital-associated gastrointestinal illness. This infection mostly occurs in people who have had recent medical care […]
Last updated on June 14th, 2021Specimens for anaerobic culture should be properly collected and transported. Indigenous anaerobes are often present in large numbers as normal flora on mucosal surfaces (e.g. mouth). So the sample from […]
Last updated on June 19th, 2021Anaerobes are significant component of normal flora of humans especially in small and large intestine, and female genitourinary tract. They help us by supplying vitamins, digesting foods and by outcompeting […]
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