Fig. 4

Bootstrap confidence intervals of estimates of compositional mean relative abundances of the 20 most abundant nasopharyngeal (NP) bacterial genera detected in 103 participants during the first 30 months of life. Bootstrap confidence intervals were computed at the 95% confidence level (vertical lines) for each of the 20 most abundant NP bacterial genera at each of the timepoints under study. Compositional mean relative abundances at each of the timepoints are presented by the dot on each bootstrap confidence interval line. Specimen collection age (in months) is shown on the X-axis. Shades of colors are used to present phylum-level classification [shades of blue: Proteobacteria (and Campilobacterota, previously Epsilonproteobacteria), shades of yellow: Actinobacteria, shades of red: Firmicutes, shades of pink: Fusobacteriota, shades of green: Bacteroidetes]. Note that the Y-axis scale varies