Anaerobic bacteria and certain parasites

Anaerobic bacteria and certain parasites" collectively describes a wide variety of pathogenic **anaerobic microorganisms** (e.g., *Bacteroides*, *Clostridium*, *Fusobacterium*, *Entamoeba histolytica*, *Giardia lamblia*, *Trichomonas vaginalis*) responsible for human and animal infections[1][4][7][3]. These organisms thrive in environments with little or no oxygen and often cause disease when they breach mucosal barriers or invade sterile body sites. Therapeutic drugs used against these organisms commonly exploit their unique anaerobic metabolism, but this designation is not a molecular entity[1][8][5][3].

Other names

Anaerobic bacteriaAnaerobic parasitesObligate anaerobesAnaerobic protozoa

Drugs often act by interfering with DNA synthesis or energy metabolism unique to anaerobic conditions (e.g., reduction of nitroimidazoles under low-redox environment leading to DNA damage)[1][8][5]