| china | | bifidobacterium longum subsp. infantis | subspecies | 1 | 0 |
| china | qinghai | bifidobacterium longum subsp. infantis | subspecies | 69 | 0 |
| india | andhra pradesh | bifidobacterium longum subsp. infantis | subspecies | 92 | 0 |
| iran | | bifidobacterium longum subsp. infantis | subspecies | 1 | 0 |
| italy | | bifidobacterium longum subsp. infantis | subspecies | 55 | 0 |
| japan | | bifidobacterium longum subsp. infantis | subspecies | 8 | 0 |
| kenya | coast province | bifidobacterium longum subsp. infantis | subspecies | 90 | 0 |
| russia | moscow city | bifidobacterium longum subsp. infantis ek3 | no rank | 78 | 0 |
| russia | orenburg oblast | bifidobacterium longum subsp. infantis | subspecies | 326 | 0 |
| south korea | | bifidobacterium longum subsp. infantis | subspecies | 2 | 0 |
| switzerland | | bifidobacterium longum subsp. infantis | subspecies | 908 | 0 |
| united kingdom | | bifidobacterium longum subsp. infantis | subspecies | 1 | 0 |
| united states | | bifidobacterium longum subsp. infantis | subspecies | 58 | 0 |