Clostridium

Clostridium
Photomicrograph of Clostridium botulinum bacteria stained with crystal violet
Scientific classification
Domain: Bacteria
Kingdom: Bacillati
Phylum: Bacillota
Class: Clostridia
Order: Eubacteriales
Family: Clostridiaceae
Genus: Clostridium
Prazmowski 1880
Species

164 Species
See List of Clostridium species for complete taxonomy.

Clostridium is a genus of anaerobic, Gram-positive bacteria. Species of Clostridium inhabit soils and the intestinal tracts of animals, including humans. This genus includes several significant human pathogens, including the causative agents of botulism and tetanus. It also formerly included an important cause of diarrhea, Clostridioides difficile, which was reclassified into the Clostridioides genus in 2016.