| australia | | oesophagostomum columbianum | species | 1 | 0 |
| australia | victoria | oesophagostomum columbianum | species | 0 | 1 |
| bangladesh | | oesophagostomum columbianum | species | 1 | 0 |
| brazil | paraiba | oesophagostomum columbianum | species | 0 | 1 |
| brazil | pernambuco | oesophagostomum columbianum | species | 0 | 2 |
| brazil | sao paulo | oesophagostomum columbianum | species | 0 | 1 |
| china | | oesophagostomum columbianum | species | 1 | 0 |
| china | heilongjiang | oesophagostomum columbianum | species | 8 | 1 |
| democratic republic of the congo | province orientale | oesophagostomum columbianum | species | 0 | 1 |
| ethiopia | southern nations, nationalities, and people's region | oesophagostomum columbianum | species | 0 | 1 |
| french polynesia | | oesophagostomum columbianum | species | 0 | 1 |
| india | | oesophagostomum columbianum | species | 1 | 0 |
| india | haryana | oesophagostomum columbianum | species | 0 | 1 |
| india | jammu and kashmir | oesophagostomum columbianum | species | 0 | 2 |
| india | kerala | oesophagostomum columbianum | species | 18 | 0 |
| maldives | | oesophagostomum columbianum | species | 0 | 1 |
| mauritania | gorgol region | oesophagostomum columbianum | species | 0 | 1 |
| mozambique | maputo city | oesophagostomum columbianum | species | 0 | 1 |
| mozambique | maputo province | oesophagostomum columbianum | species | 0 | 1 |
| nigeria | imo | oesophagostomum columbianum | species | 0 | 1 |
| nigeria | oyo | oesophagostomum columbianum | species | 0 | 1 |
| nigeria | sokoto | oesophagostomum columbianum | species | 0 | 1 |
| sri lanka | western province | oesophagostomum columbianum | species | 0 | 1 |
| togo | | oesophagostomum columbianum | species | 0 | 1 |
| tonga | | oesophagostomum columbianum | species | 0 | 1 |
| tonga | tongatapu | oesophagostomum columbianum | species | 0 | 1 |