Code of Colorado Regulations
1200 - Department of Agriculture
1201 - Animal Health Division
8 CCR 1201-19 - LIVESTOCK DISEASE CONTROL
Part 8 - Equine Infectious Anemia

8.1.1. "Adjacent herd" means a group or groups of Equidae having any direct contact with an affected herd or positive animal or any herd separated by a distance of less than two hundred (200) yards. Adjacent herds are considered exposed herds.

8.1.2. "Affected herd" means a herd of Equidae that contains or has contained one or more animals infected with equine infectious anemia and that has not tested negative for all required follow-up tests for release from quarantine.

8.1.3. "Approved laboratory" means a laboratory approved prior to operating by the State Veterinarian and USDA APHIS VS.

8.1.4. "Contact herd" means a non-adjacent herd in which exposed Equidae have been identified.

8.1.5. "Equidae" means all members of the genus Equus which includes but is not limited to horses, asses, hinnies, mules, donkeys, burros, ponies, and zebras.

8.1.6. "Equine infectious anemia (EIA)" means a blood borne viral infectious disease of Equidae caused by a lentivirus. The infection is characterized by three distinct forms: acute, chronic (both associated with clinical signs of disease), and in-apparent.

8.1.7. "Exposed herd" means Equidae that have been in contact with, associated with, or adjacent to animals known to be EIA positive.

8.1.8. "Herd" means one or more Equidae maintained on common ground under single or multiple ownership or supervision that are geographically separated but can have an interchange or movement without regard to health status.

8.1.9. "Herd plan" means a herd management and testing agreement designed by a state or federal veterinarian and a herd owner to control and eradicate EIA from an affected, adjacent, or exposed herd of Equidae.

8.1.10. "Index case" means the first disclosed case of EIA on a premises or area.

8.1.11. "NVSL" means the USDA, National Veterinary Services Laboratory in Ames, Iowa.

8.1.12. "Official test" means the agar gel immunodiffusion (AGID) or "Coggins" test, the enzyme-linked immunosorbent assay (ELISA) test any USDA licensed tests, or any other diagnostic test approved by the State Veterinarian.

8.1.13. "Positive" means any Equidae that discloses a positive reaction to an official test for EIA.

8.1.14. "Test eligible" means all Equidae other than foals less than six (6) months of age accompanied by their negative tested dam.

8.1.15. "VS Form 10-11" means the official USDA Veterinary Services laboratory submission form used in testing Equidae for EIA.

8.2.1. Under authority of the State Veterinarian, a state or federal veterinarian or an accredited veterinarian may conduct an official test on any test eligible Equidae known or suspected to be infected with or exposed to EIA.

8.3.1. An authorized agent of the Colorado Department of Agriculture shall have the authority to enter any premises, place, building, or enclosure, upon consent of the equine owner or agent, for the purpose of inspecting, testing, identifying, and examining Equidae found or suspected to be exposed or infected with EIA.

8.4.1. Approved laboratories shall notify the State Veterinarian's office and the individual submitting the sample for testing within twenty-four (24) hours of all positive test results.

8.4.2. Approved laboratories shall report test results only when samples are properly submitted and accompanied by a completed VS Form 10-11 or other electronic form approved by the State Veterinarian.

8.5.1. All Equidae tested for EIA pursuant to an official test shall be classified as negative or positive.

8.5.2. Positive Equidae and retests.

8.5.3. Testing in Exposed, Contact, and Adjacent Herds

8.6.1. Any Equidae confirmed positive by an official test shall be quarantined.

8.6.2. The quarantine shall include the positive Equidae and other exposed Equidae on the premises.

8.6.3. A hold order shall be placed on all premises within 200 yards of the premises of the index case and on exposed and contact herds based on epidemiologic evidence.

8.7.1. Any Equidae that has been confirmed positive, as in Part 8.5, shall be permanently identified with an ISO-compliant microchip or other electronic identification device, or other methods approved by the State Veterinarian, no more than fifteen (15) days after the date of the official test. The information pertaining to the electronic identification shall be reported to the State Veterinarian.

8.8.1. Confirmed positive EIA Equidae shall be euthanized, or isolated as described in Part 8.9.4., if approved by the State Veterinarian. Euthanasia or isolation as described in Part 8.9.4 must occur within seven (7) days after NVSL confirmation.

8.8.2. All Equidae euthanized prior to permanent identification shall be reported immediately to the State Veterinarian and then described in a written statement by the accredited veterinarian or authorized agent certifying the euthanasia.

8.9.1. All positive and exposed Equidae shall be accompanied by a VS Form 1-27 permit when moved from any quarantined premises.

8.9.2. Any change in location of positive or exposed Equidae to an alternate quarantined premises shall be approved in advance following an epidemiological investigation of the receiving premises by the State Veterinarian.

8.9.3. No diversion from the destination identified on the permit is allowed.

8.9.4. All positive Equidae shall be stabled at a distance of at least 200 yards from any other Equidae on the owner's premises and Equidae on adjacent premises.

8.9.5. All positive Equidae shall be stabled within a screened stable, during the vector season, as approved by the State Veterinarian. The owner shall also be required to abide by a herd plan approved by the State Veterinarian for the remainder of the affected herd.

8.10.1. No Equidae held under quarantine shall be moved or released until either a VS Form 1-27 permit or quarantine release has been issued by an authorized agent of the Colorado Department of Agriculture or the USDA.

8.10.2. The EIA quarantine may be released after all remaining Equidae are classified negative in the affected herd following the identification and removal of the last EIA positive animal.

8.10.3. When evaluating the release of the quarantine, the vector season may be considered when reviewing epidemiologic factors.