| austria | | tetratrichomonas gallinarum | species | 3 | 0 |
| china | | tetratrichomonas gallinarum | species | 3 | 0 |
| france | | tetratrichomonas gallinarum | species | 6 | 0 |
| germany | | tetratrichomonas gallinarum | species | 1 | 0 |
| germany | berlin | tetratrichomonas gallinarum | species | 0 | 1 |
| iran | | tetratrichomonas gallinarum | species | 3 | 0 |
| iran | lorestan province | tetratrichomonas gallinarum | species | 1 | 0 |
| netherlands | | tetratrichomonas gallinarum | species | 32 | 0 |
| philippines | | tetratrichomonas gallinarum | species | 5 | 0 |
| turkey | | tetratrichomonas gallinarum | species | 1 | 0 |
| united kingdom | | tetratrichomonas gallinarum | species | 2 | 0 |
| united states | california | tetratrichomonas gallinarum | species | 0 | 1 |
| vietnam | | tetratrichomonas gallinarum | species | 3 | 0 |