The significance of oral streptococci in patients with pneumonia with risk factors for aspiration: The bacterial floral analysis of 16S ribosomal RNA gene using bronchoalveolar lavage fluid

Aspiration pneumonia has been a growing interest in an aging population. Anaerobes are important pathogens, however, the etiology of aspiration pneumonia is not fully understood. In addition, the relationship between the patient clinical characteristics and the causative pathogens in pneumonia patients with aspiration risk factors are unclear.