Anaerobic Infections

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Abstract
Chest InfectionsA common thread in the diverse clinical settings of anaerobic pulmonary infections is aspiration of oropharyngeal secretions. The inoculum is largely saliva containing pooled bacteria from the tongue, gingiva, buccal mucosa and pharynx. Gastric contents may also be aspirated, and the bacteria from this source are similar to those in saliva.60 Quantitative studies of saliva yield concentrations of 107 aerobic and facultative bacteria per milliliter and 108 anaerobes per milliliter.60 Total anaerobic counts and the relative proportion of anaerobes to aerobes increase in the presence of dental disease.61 The principal anaerobic constituents of normal flora are peptostreptococci, peptococci, . . .

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