Actinomyces in culture and gram-stain
Bacteriology

Actinomyces: Properties, Disease, Lab Diagnosis

Last updated on June 21st, 2021Actinomyces comprised a heterogeneous group of gram-positive, pleomorphic bacilli. Other properties are: facultatively anaerobic or microaerophilic, non-spore-forming, non-acid-fast (this is a contrast to another bacteria, Nocardia which is acid-fast) Non-motile […]

Toxins of Clostridium perfringens
Anaerobic Bacteriology

Toxins of Clostridium perfringens and their roles

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. […]