Bacillus anthracis, the most notorious pathogen of the genus Bacillus, is the causative agent of a serious zoonotic disease called anthrax. Anthrax is primarily a disease of wild and domestic...
Tag: Gram Positive Rods
Clostridium 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...
Gram-positive bacteria retain the primary stain (crystal violet) color in the Gram staining procedure and appear purple under a light microscope. These bacteria have a cell wall containing a thick...
Clostridioides difficile: Characteristics, Disease, Lab Diagnosis
Clostridioides (formerly Clostridium) difficile causes life-threatening diarrhea. Clostridioides difficile infection (CDI) is a leading cause of hospital-associated gastrointestinal illness....
Elek test is an in vitro immunoprecipitation (immunodiffusion) test to determine whether or not a strain of Corynebacterium diphtheriae is toxigenic. A test strip of filter paper containing...
Endospore staining is a differential technique that selectively stains the spores and makes them distinguishable from the vegetative part of the cells. Endospores are produced by a few genera of...
