I think this may be important but can't paste it re COPD

Periodontal Pathogens and Respiratory Diseases ... - Jaypee Journals

www.jaypeejournals.com/eJournals/ShowText.aspx?ID=5305&...

pulmonary disease (COPD) and periodontal health status clinically and or .... samples showed species like Streptococcus spp, Candida, and Diphtheroids ...