Fig. 7.

Volcano plots representing ASVs that showed differential abundance in the oropharynx. A Effect of pneumococcal carrier status. B Effect of smoking status. C Effect of having contact with children. Bacterial taxa overrepresented among pneumococcal carriers, smokers, and adults who have regular contact with children are represented by red circles on the right side of each corresponding plot. Bacterial taxa underrepresented among pneumococcal carriers, smokers, and adults who have regular contact with children are represented by green circles on the left side of each corresponding plot. Gray circles indicate bacterial taxa that were not differentially abundant