A septic embolism is a type of embolism that is infected with bacteria, resulting in the formation of pus. These may become dangerous if dislodged from their original location. Like other emboli, a septic embolism may be fatal.
One of the common microbes that can lead to widespread dissemination of septic emboli is Fusobacterium necrophorum, a Gram negative anaerobic bacillus. Fusobacteria are commensal organisms in the oral cavity.
F. necrophorum and F. nucleatum are the most important among the non-spore forming anaerobic bacilli in causing human infections. F. necroporum may occasionally cause septicaemia with metastatic abscesses (Lemierre's syndrome).
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