New World screwworm

New World screwworm

Canada implements animal import restrictions due to NWS in US

The Canadian Food Inspection Agency has implemented temporary import restrictions on livestock, including horses, from entering Canada from areas in the U.S. that have been affected by New World screwworm (NWS).

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Animal Health & Veterinary

USDA confirms 2 additional cases of New World screwworm in US

The two additional cases of New World screwworm in the United States come from a calf in La Salle County, Texas, and a dog in Andrews County, Texas.

Animal Health & Veterinary

Second case of New World screwworm confirmed 5.6 miles from first

Newest detection is within the established movement control zone and enhanced sterile insect dispersal area.

Animal Health & Veterinary

Texas governor looks to accelerate construction of new NWS sterile fly facility

The original operational capability for the facility in Edinburg, Texas, was originally targeted for November 2027, but Gov. Greg Abbott said he would like to see the facility operational by May 2027.

Animal Health & Veterinary

AVMA: Veterinarians are key to New World screwworm response

Following the recent detection of New World screwworm in Texas, the American Veterinary Medical Association (AVMA) is empowering one of the most important tools in preventing, identifying, treating and containing this parasite: the veterinarian.

Animal Health & Veterinary

USDA ramps up sterile fly dispersal after NWS re-emergence

Officials reiterated that New World screwworm (NWS) infestation is treatable and urged livestock producers to monitor their animals closely and report any suspected cases.

Animal Health & Veterinary

More information on New World screwworm from Feed Strategy

Learn more about New World screwworm, how to prevent its spread and what to do if you suspect an infestation on your farm.

Animal Health & Veterinary

Animal health experts urge vigilance in monitoring for New World screwworm

Officials and representatives from animal health companies are urging livestock producers to be vigilant in monitoring their animals for signs of an infestation of New World screwworm (NWS).

Animal Health & Veterinary

Animal movement restrictions declared in Texas after NWS found

The Texas Animal Health Commission has declared animal movement restrictions in two counties after New World screwworm (NWS) was found in Zavala County, effective immediately.

Animal Health & Veterinary

US ag groups confident in USDA’s capability to respond to NWS

American Farm Bureau Federation’s president said re-emergence of New World screwworm will have an immediate impact, but House and Senate ag committee leaders say it is not a reason to panic.

Animal Health & Veterinary

USDA confirms case of New World screwworm in United States

Three-week-old calf in Zavala County, Texas, affected, with no further detections elsewhere.

Animal Health & Veterinary

Rollins: USDA ready to respond ‘immediately’ to NWS threat

Agriculture Secretary Brooke Rollins said New World screwworm has been detected 25 miles from the U.S. border.

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