Equine Importation 7-Day Quarantine (Screwworm)

Equine Importation 7-Day Quarantine (Screwworm)

 Horses may be imported into the United States from countries the USDA considers to be affected with screwworm provided that the following conditions have been met.

  1. A veterinarian must treat horses with ivermectin 3 to 5 days prior to the date of export to the United States according to the recommended dose prescribed on the product's label.
  2. Horses must be examined for screwworm by a full-time salaried veterinary official of the exporting country within 24 hours prior to shipment to the United States. The official must fully examine the horses, including their external genitalia. If horses are found to be infested with screwworm, they must be treated until free from infestation.
  3. At the time horses are loaded onto a means of conveyance for export, a veterinarian must treat any visible wounds on the animals with a solution of coumaphos dust at a concentration of 5 percent active ingredient.
  4. Horses must be accompanied to the United States by a certificate signed by a full-time salaried veterinary official of the exporting country. The certificate must state that the horses:
    1. have been thoroughly examined, including their external genitalia, and found free of screwworm and that the horses have been treated in accordance with numbers 1 and 3 above.
    2. been in that country for 60 days immediately preceding importation. If not, they must be accompanied by a like certificate issued by a full-time salaried veterinary officer of the National Government of each country in which the horses have been during the 60 days immediately preceding shipment to the United States.
    3. been inspected and found to be free of contagious diseases and, insofar as can be determined, exposure thereto during the 60 days immediately preceding exportation.
    4. not been vaccinated with a live or attenuated or inactivated vaccine during the 14 days immediately preceding exportation.
    5. not been on premises where African horsesickness, dourine, glanders, surra, epizootic lymphangitis, ulcerative lymphangitis, equine piroplasmosis, equine infectious anemia (EIA), contagious equine metritis (CEM), vesicular stomatitis, or Venezuelan equine encephalomyelitis has occurred during the 60 days immediately preceding exportation, nor have these diseases occurred on any adjoining premises during the same period of time.
    6. not been in a country where CEM is known to exist, nor have had any contact, breeding, or otherwise, with horses from such country, for the 12 months preceding exportation.


Horses presented for entry into the United States from countries that are not recognized by the USDA as being free from screwworm are required to be quarantined for a minimum of 7-days at the port of entry. The cost for quarantine can be found here  While in quarantine, tests for dourine, glanders, equine piroplasmosis, and equine infectious anemia are conducted. Horses that test positive for any of the diseases will be refused entry into the United States. 

To reserve space at a USDA-operated quarantine facility the importer or agent should contact the port veterinarian at one of the  following locations:


New York Animal Import Center
474 International Boulevard
Rock Tavern, NY 12575
(845) 838-5500

Los Angeles Import Center
11850 S. La Cienega Blvd.
Hawthorne, CA 90250
(310) 725-1970

Miami Animal Import Center
6300 NW 36 Street
Miami, FL 33122
(305) 876-2200


It may be prudent to check with the State of destination as to any additional State Health requirements that must be met. Some States have health requirements that are in addition to those required by the Federal Government.


Countries that USDA Considers to be Affected with Screwworm:


Angola Guyana Peru
Argentina Haiti Philippines
Bahrain India Qatar
Bangladesh Indonesia Rwanda
Benin Iraq Saudi Arabia
Bolivia Isla de Pascua (Easter Island, part of Chile) Senegal
Botswana Ivory Coast Sierra Leone
Brazil Jamaica Singapore
Brunei Kenya South Africa
Burkina Faso Kuwait Spratly Islands
Burundi Laos Sri Lanka
Cambodia Lesotho Surinam
Cameroon Liberia Swaziland
Central African Republic Macau Taiwan
China Malawi Tanzania
Columbia Malaysia Thailand
Congo Mali Togo
Cuba Mauritania Trinidad and Tobago
Dominican Republic Mozambique Uganda
Ecuador Myanmar United Arab Emirates
Equatorial Guinea Namibia Uruguay
French Guinea Nigeria Venezuela
Gabon Oman Vietnam
Gambia Pacific Islands (Palau) Zaire
Ghana Papua New Guinea Zambia
Guinea Paraacel Islands Zimbabwe
Guinea-Bissau Paraguay  


 *Or any other part of the world where screwworm is considered to exist.

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