TABLE 5.
Mean relative abundances of the aggregated list of top 10 most abundant genera (or next highest characterizable taxa) from each timepoint in infant feces, infant oral, maternal feces, maternal oral, and milk samples from 2 d to 6 mo postpartum1
| Infant feces | % | Infant oral | % | Maternal feces | % | Maternal oral | % | Milk | % |
|---|---|---|---|---|---|---|---|---|---|
| Bacteroides | 21.4 ± 2.4 | Streptococcus | 69.1 ± 1.8 | Bacteroides | 22.9 ± 1.3 | Streptococcus | 53.9 ± 1.3 | Streptococcus | 47.1 ± 2.3 |
| Escherichia/Shigella | 16.0 ± 2.0 | Gemella | 9.5 ± 1.3 | Faecalibacterium | 8.8 ± 0.6 | Rothia | 6.3 ± 0.5 | Staphylococcus | 24.1 ± 2.2 |
| Veillonella | 10.5 ± 1.4 | Rothia | 5.7 ± 1.0 | Prevotella | 7.6 ± 1.0 | Gemella | 6.2 ± 0.5 | Gemella | 3.6 ± 0.8 |
| Clostridium sensu stricto | 9.0 ± 1.6 | Staphylococcus | 4.1 ± 0.9 | Lachnospiracea incertae sedis | 7.6 ± 0.4 | Prevotella | 5.8 ± 0.5 | Rothia | 2.6 ± 0.5 |
| Bifidobacterium | 5.4 ± 0.9 | Veillonella | 2.6 ± 0.3 | Lachnospiraceae | 5.5 ± 0.3 | Veillonella | 5.3 ± 0.3 | Veillonella | 2.5 ± 0.3 |
| Streptococcus | 4.6 ± 1.2 | Lactobacillales | 1.2 ± 0.0 | Porphyromonas | 4.2 ± 0.6 | Neisseria | 4.5 ± 0.4 | Lactobacillus | 1.7 ± 0.7 |
| Parabacteroides | 4.0 ± 1.0 | Granulicatella | 1.1 ± 0.2 | Ruminococcaceae | 3.4 ± 0.2 | Granulicatella | 2.7 ± 0.2 | Pseudomonas | 1.7 ± 0.6 |
| Lachnospiracea incertae sedis | 2.8 ± 0.7 | Haemophilus | 0.9 ± 0.4 | Oscillibacter | 3.2 ± 0.3 | Haemophilus | 2.7 ± 0.2 | Lactobacillales | 1.7 ± 0.1 |
| Pseudomonas | 2.7 ± 0.5 | Soonwooa | 0.6 ± 0.3 | Clostridiales | 2.8 ± 0.2 | Fusobacterium | 1.2 ± 0.1 | Propionibacterium | 1.4 ± 0.3 |
| Clostridium XlVa | 1.8 ± 0.6 | Prevotella | 0.5 ± 0.3 | Parabacteroides | 2.3 ± 0.2 | Actinomyces | 1.2 ± 0.1 | Corynebacterium | 1.2 ± 0.3 |
| Enterobacter | 1.7 ± 0.5 | Porphyromonas | 0.5 ± 0.2 | Dialister | 1.7 ± 0.3 | Porphyromonas | 1.0 ± 0.2 | Bacillales | 0.9 ± 0.0 |
| Clostridium XVIII | 1.7 ± 0.5 | Actinomyces | 0.4 ± 0.1 | Blautia | 1.3 ± 0.2 | Lactobacillales | 0.8 ± 0.0 | Bacilli | 0.6 ± 0.0 |
| Klebsiella | 1.6 ± 0.5 | Lactobacillus | 0.4 ± 0.2 | Peptoniphilus | 1.2 ± 0.2 | Schlegelella | 0.6 ± 0.1 | Prevotella | 0.6 ± 0.1 |
| Enterobacteriaceae | 1.5 ± 0.3 | Neisseria | 0.4 ± 0.2 | Campylobacter | 1.2 ± 0.3 | — | — | Actinomyces | 0.5 ± 0.1 |
| Haemophilus | 1.5 ± 0.5 | Bacilli | 0.3 ± 0.0 | Anaerosphaera | 1.1 ± 0.2 | — | — | Granulicatella | 0.5 ± 0.1 |
| Lachnospiraceae | 1.2 ± 0.3 | Bacillales | 0.3 ± 0.0 | Anaerococcus | 1.1 ± 0.2 | — | — | Clostridium sensu stricto | 0.5 ± 0.1 |
| Lactococcus | 0.9 ± 0.4 | Pasteurellaceae | 0.2 ± 0.1 | Lactobacillus | 0.9 ± 0.4 | — | — | Lactococcus | 0.3 ± 0.1 |
| Megasphaera | 0.9 ± 0.4 | Actinomycetales | 0.2 ± 0.0 | — | — | — | — | Neisseria | 0.2 ± 0.2 |
| Akkermansia | 0.6 ± 0.6 | Pilibacter | 0.2 ± 0.0 | — | — | — | — | Comamonas | 0.2 ± 0.1 |
| Prevotella | 0.5 ± 0.3 | Prevotellaceae | 0.2 ± 0.1 | — | — | — | — | Leuconostoc | 0.2 ± 0.1 |
| Leuconostoc | 0.5 ± 0.2 | Flavobacteriaceae | 0.2 ± 0.0 | — | — | — | — | — | — |
| Citrobacter | 0.4 ± 0.3 | Bifidobacterium | 0.1 ± 0.1 | — | — | — | — | — | — |
| Weissella | 0.4 ± 0.2 | — | — | — | — | — | — | — | — |
| Faecalibacterium | 0.3 ± 0.3 | — | — | — | — | — | — | — | — |
1
Values are means ± SEM; for infant feces, n = 149; infant oral, n = 151; maternal feces, n = 162; maternal oral, n = 182; milk, n = 147.