Bacteroides fragilis и видовете от групата на B. fragilis * Clostridium species (с изключение на Clostridium difficile) * Eubacterium species * Fusobacterium species * Peptostreptococcus species * Porphyromonas asaccharolytica * Prevotella species * Видове, при които придобитата резистентност може да бъде проблем:
Bacteroides fragilis and species in the B. fragilis Group* Clostridium species (excluding C. difficile)* Eubacterium species* Fusobacterium species* Peptostreptococcus species* Porphyromonas asaccharolytica* Prevotella species* Species for which acquired resistance may be a problem: