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Taxonomy Family: Flavobacteriaceae, genus: C.ochracea, C.gingivalis, C.sputigena, C.haemolytica and C.granulosa Natural Habitat They are normal inhabitants of the human mouth Clinical Significance The first three are also associated with juvenile and adult periodontitis, whereas the latter two been isolated from supragingival plaque of healthy adults as well as from subgingival plaque in adult periodontitis. All five species may cause septicemia and other infections in immunosuppressed (mainly neutrpenic) patients.
Taxonomy Family: Pasteurellaceae, previously: Haemophilus Genus: Aggregatibacter aphrophilus Formerly: Haemophilus aphrophilus Natural habitats Occur in the mouth and oropharynx of healthy individuals. It is a frequent member of the microflora of human dental plaque, particularly between the teeth and in the gingival pockets Clinical significance Has been isolated from blood, spinal fluid, peritoneum, pleura, wounds and jaw infections. Opportunistic pathogen occasionally implicated in subacute endocarditis, brain abscesses, sinusitis, arthritis and osteomyelitis often caused by dental treatments that cause a break of the oral mucosal barrier and a temporary bactereamia.