| belgium | | avian leukosis virus | species | 1 | 0 |
| brazil | sao paulo | avian leukosis virus | species | 3 | 0 |
| bulgaria | | avian leukosis virus | species | 2 | 0 |
| china | | avian leukemia virus | no rank | 4 | 0 |
| china | | avian leukosis and sarcoma virus | no rank | 11 | 0 |
| china | | avian leukosis virus | species | 677 | 0 |
| china | | avian leukosis virus e | no rank | 1 | 0 |
| china | | avian leukosis virus ev/j | no rank | 35 | 0 |
| china | anhui | avian leukosis virus | species | 5 | 0 |
| china | beijing | avian leukosis virus | species | 3 | 0 |
| china | fujian | avian leukosis virus | species | 4 | 0 |
| china | guangdong | avian leukosis virus | species | 6 | 2 |
| china | guangxi | avian leukosis virus | species | 39 | 1 |
| china | heilongjiang | avian leukosis virus | species | 2 | 0 |
| china | hunan | avian leukosis virus | species | 19 | 0 |
| china | jiangsu | avian leukosis virus | species | 6 | 0 |
| china | shandong | avian leukosis virus | species | 8 | 1 |
| china | shanxi | avian leukosis virus | species | 2 | 0 |
| china | xinjiang | avian leukosis virus | species | 1 | 0 |
| costa rica | | avian leukosis virus | species | 1 | 0 |
| egypt | | avian leukosis virus | species | 6 | 0 |
| egypt | | avian leukosis virus hprs103 | no rank | 3 | 0 |
| germany | | avian leukosis virus | species | 8 | 0 |
| germany | saxony | avian leukosis virus | species | 23 | 0 |
| india | | avian leukosis virus | species | 125 | 0 |
| india | | avian leukosis virus e | no rank | 1 | 0 |
| india | kerala | avian leukosis virus ev/j | no rank | 1 | 0 |
| india | tamil nadu | avian leukosis virus | species | 0 | 1 |
| indonesia | | avian leukosis virus | species | 4 | 0 |
| iran | | avian leukosis virus | species | 2 | 0 |
| iran | fars province | avian leukosis virus | species | 0 | 1 |
| japan | | avian leukosis virus | species | 20 | 0 |
| japan | gifu prefecture | avian leukosis virus | species | 2 | 0 |
| japan | hokkaido prefecture | avian leukosis virus | species | 10 | 0 |
| japan | kumamoto prefecture | avian leukosis virus | species | 25 | 0 |
| japan | okinawa prefecture | avian leukosis virus | species | 2 | 0 |
| japan | shizuoka prefecture | avian leukosis virus | species | 1 | 0 |
| japan | tokyo prefecture | avian leukosis virus | species | 1 | 0 |
| japan | toyama prefecture | avian leukosis virus | species | 1 | 0 |
| japan | yamaguchi prefecture | avian leukosis virus | species | 2 | 0 |
| malaysia | | avian leukosis virus | species | 1 | 0 |
| nigeria | | avian leukosis virus | species | 3 | 0 |
| nigeria | | avian leukosis virus ev/j | no rank | 4 | 0 |
| pakistan | | avian leukosis virus | species | 2 | 0 |
| philippines | | avian leukosis virus | species | 1 | 0 |
| russia | chelyabinsk oblast | avian leukosis virus | species | 5 | 0 |
| russia | mari el republic | avian leukosis virus | species | 11 | 0 |
| south africa | gauteng province | avian leukosis virus | species | 0 | 1 |
| taiwan | | avian leukosis virus | species | 4 | 3 |
| taiwan | | avian leukosis virus - rsa | no rank | 0 | 1 |
| turkey | | avian leukosis virus | species | 10 | 0 |
| united kingdom | england | avian leukosis virus | species | 0 | 1 |
| united states | | avian leukosis virus | species | 37 | 0 |
| united states | | avian leukosis virus ev/j | no rank | 1 | 0 |
| united states | nevada | avian leukosis virus | species | 0 | 1 |
| united states | nevada | avian leukosis virus - rsa | no rank | 0 | 1 |