| Animal distal gut | 7124 |
| Animal surface | 331 |
| Surface (non‐saline) | 204 |
| Sterile water blank | 102 |
| Animal secretion | 91 |
| animal distal gut | 68 |
| Animal corpus | 58 |
| Water (non‐saline) | 15 |
| Plant corpus | 13 |
| Animal proximal gut | 12 |
| Aerosol (non‐saline) | 9 |
| Single strain | 6 |
| Water (saline) | 6 |
| Soil (non‐saline) | 6 |
| not provided | 2 |
| Sediment (saline) | 2 |
| Surface (saline) | 1 |
| Total samples | 8050 |