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Peptostreptococcus
Normal occurrence = Oral cavity
Implication in Diseases
Endocarditis
Parotitis
Peritonsilar abscess
Pleuropulmonary infections
External otitis
Chronic periodontitis
Root canals
Peptostreptoccci are normal flora in the oral cavity.  But they have also been isolated from many oral infections and are believed to play a role in many oral, mixed infections in the mouth and upper body regions. These include
•Endocarditis
•Parotitis
•Peritonsilar abscesses
•Pleuropulmonary infections
•External otitis
•Chronic periodontitis and
•Root canals
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