NEW WORLD SCREWWORM - UPDATING AS INFORMATION IS RELEASED

• USDA Invests in Projects to Strengthen New World Screwworm Preparedness and Response HERE
• NWS confirmed Detections HERE
• June 11, 2026: FDA Issues Emergency Use Authorization for Generic Over-the-Counter Drug to Treat New World Screwworm in Dogs and Cats HERE
• June 10, 2026: USDA Continues to Lead Coordinated Response to New World Screwworm; New Case Confirmed in La Salle County, Texas HERE
• June 08, 2026: USDA Confirms First Case of New World Screwworm in a Dog in Lea County, New Mexico, Fourth Case in Texas HERE
• June 04, 2026: Stop NWS: Unified Government Response HERE

• June 04, 2026: New World Screwworm HERE

• June 03, 2026: Read the full executive order and see the specific identified infested zone HERE
• May 19, 2026: FDA Information for Veterinarians HERE
• May 19, 2026: FDA Issues Emergency Use Authorization for Over-the-Counter Injectable Drug for New World Screwworm in Dairy Cattle, Horses, Swine, Sheep, and Deer HERE
• April 27, 2026: FDA Issues Emergency Use Authorization for Topical Powder to Prevent and Treat New World Screwworm in Multiple Species HERE
• April 24, 2026: FDA Issues Emergency Use Authorization for Ointment to Prevent and Treat New World Screwworm in Multiple Species, Including Cattle, Sheep, Goats, Horses, Wild and Exotic Mammals, Wild and Pet Birds HERE

• April 14, 2026: USDA New World Screwworm Emergency Response HERE

• March 10, 2026: FDA Issues Emergency Use Authorization for Topical Spray to Prevent and Treat New World Screwworm in Multiple Species, Including Cattle, Sheep, Goats, Horses, Wild and Exotic Mammals, Wild and Pet Birds HERE
• February 18, 2026: FDA Issues Emergency Use Authorizations for Drugs to Treat New World Screwworm in Dogs and Cats HERE
• February 5, 2026: FDA Issues Emergency Use Authorization for Over-the-Counter Injectable Drug to Prevent New World Screwworm in Cattle HERE
• December 17, 2025: FDA Conditionally Approves Drug to Treat New World Screwworm in Dogs HERE
• December 4, 2025: FDA Conditionally Approves Topical Drug for Cattle for New World Screwworm and Cattle Fever Tick HERE
• November 21, 2025: FDA Issues Emergency Use Authorization for Credelio CAT to Treat New World Screwworm in Cats HERE

• October 24, 2025: FDA Issues Emergency Use Authorization for New World Screwworm Drug for Dogs HERE

• September 30, 2025: FDA Conditionally Approves First Drug for Prevention and Treatment of New World Screwworm Infestations in Cattle HERE

• August 19, 2025: HHS Allows FDA Emergency Use of Animal Drugs to Combat New World Screwworm, Protect U.S. Food Supply HERE

• May 11, 2025: Secretary Rollins Suspends Live Animal Imports Through Ports of Entry Along Southern Border, Effective Immediately HERE

ARTICLES

• New World screwworm cases rise to 32 inside the U.S. HERE
• Stay on Top of Screwworm Spread with Meatingplace’s New NWS Tracker HERE
• U.S. screwworm cases climb to 27 as Texas quarantines expand HERE
• A Cowboy Shortage: Can the U.S. Fight Screwworm Without the Hands It Once Had? HERE
• TAHC NWS website HERE
• New Mexico NWS website HERE
• Texas Animal Health Commission (TAHC) update HERE
• New World Screwworm cases climb to 19 in TX, NM HERE
• CDFA Update for Producers, Veterinarians and animal owners-UPDATED ENTRY REQUIREMENTS NOW IN EFFECT HERE
• New World Screwworm Guide HERE
• CDC activates level 3 response NWS HERE
• The U.S. fought the flesh-eating screwworm for decades. Now it begins again. HERE
• USEF webinar:“Screwworm in the U.S. - What Horse Owners Need to Know,” June 18 at 4 p.m. ET to learn more. Register here HERE
• Companion Animal Care in the Face of the New World Screwworm (NWS) Threat HERE
• Travis County issues disaster declaration for New World screwworm as Texas cases rise HERE
• EXECUTIVE DIRECTOR ORDER DECLARING ANIMAL MOVEMENT RESTRICTIONS DUE TO NEW WORLD SCREWWORM IN KIMBLE, SCHLEICHER, AND SUTTON COUNTIES HERE
• more cases in TX HERE
• State officials announce emergency rule to prevent spread of parasitic screwworm into Colorado HERE
• TAHC EXECUTIVE DIRECTOR ORDER DECLARING ANIMAL MOVEMENT RESTRICTIONS DUE TO NEW WORLD SCREWWORM IN COKE AND TOM GREEN COUNTIES HERE
• TAHC interactive map of quarantine zones HERE
• Press Conference Gov Abbot, Sec Rollins HERE
• TAHC quarantines Kerr County under New World screwworm order following Gillespie detectionI HERE
• Idaho Cattlemen's Association NWS Update HERE
• Rollins, Vilsack spar over screwworm history HERE
• Mexico Halts most U.S. livestock imports as screwworm expands HERE
• 6th screwworm case confirmed in Texas, expanding infested zone HERE
• New Mexico Department of Agriculture's Post HERE
• OTC Ivermectin approved for emergency use against screwworm HERE
• Latest New World screwworm news from Texas A&M AgriLife Today HERE
• Texas A&M AgriLife responds after New World screwworm found in Texas HERE
• Calf Corner Dr. Derrell Peel: New World Screwworm Confirmation: The Bad and the Good News HERE
• AG DAILY 01/15/2025 Screwworm eradication lessons from a longtime veterinarian

• HERE

• Governor Abbott, Secretary Rollins Update Texans On Screwworm Response At Kerrville Lab HERE

• Letter from California Department of Food and Agriculture to CA Veterinary Medical Board HERE
• USDA Confirms Additional New World Screwworm Cases, First Outside of Texas HERE
• 2 additional New World screwworm cases detected in Texas HERE

• Texas Governor Abbott Declares Disaster as NWS Spreads Second Calf Confirmed with New World Screwworm in South Texas HERE

• WEBINAR: “New World Screwworm is in Texas…now what?”Informational webinar for Colorado Producers and Veterinarians Register HERE

• New World Screwworm A Threat to Livestock and Wildlife HERE

• Colorado Livestock Association's Statement on Confirmed Case of NWS HERE

• Colorado Increases Readiness After New World Screwworm (NWS) Confirmed in Texas, Urges Vigilance HERE

• Second New World Screwworm Case Confirmed in South Texas Calf HERE
• How Far Can They Go? HERE
• Nebraska Dept of Agriculture article on NWS HERE

• New World Screwworm Has Landed: What Dairy Farms Need to Prepare For HERE

• The History & Biology of New World Screwworm HERE

• New World Screwworm Update, Eryn McGrath, Assistant State Vet, Colorado Department of Ag HERE

VETERINARY ARTICLES AND RESOURCES

• New World Screwworm: 7 Vital Facts to Protect Your Flock HERE

• Texas A&M University Veterinary Medicine & Biomedical Sciences: Digging Deeper: How to protect pets from NWS HERE

• AVMA NWS in companion animals: Evaluation and response. HERE
• FDA-authorized and -approved animal drugs for New World screwworm HERE
• "This is not going to be an isolated incident": Q&A with a parasitologist on the New World screwworm's return to the US HERE
• Screwworms: when the larvae don't care about boundaries HERE

• Veterinary Partner New World Screwworms in Dogs and Cats - Veterinary Partner - VIN HERE

VIDEOS & PODCASTS

• RANCH BEAT: New World Screwworm Is Back HERE
• TX Farm Bureau: Inspect. Report. Protect. What you need to know about New World screwworm HERE
• New World Screwworm: A Practical Guide to Sample Collection and Treatment

  HERE

• TAMU Agrilife Extension short reel about nws. HERE

• Good info about why normal feed through doesn’t work with NWS Zavala County Public Meeting -Public Meeting: New World Screwworm Update Representatives from the Texas Animal Health Commission and Texas Parks and Wildlife Department were present to provide updates and discuss current concerns. HERE

• USDA Secretary visit South Texas ranch amid screwworm response efforts HERE
• USEF and AAEP short video HERE
• Kerville press conference HERE

DOWNLOADABLE RESOURCES

• CDC Fact Sheet on NWS Identification for Providers of Homeless Services HERE

• Fact Sheet Emergency Use Authorization of Nitenpyram Tablets (nitenpyram) for New World Screwworm (NWS) for dogs and cats HERE
• USDA NWS Ready Reference Guide HERE
• Texas Animal Health Commission NWS Fact Sheet HERE
• New Mexico Department of Agriculture Fact Sheet HERE
• American Association of Equine Practitioners (AAEP) New World Screwworm Infestation (Disease) Guidelines HERE
• USDA Sterile Fly Release Methods for Controlling NWS HERE
• CA Dept of Food & Agriculture Fact Sheet: NWS Disposal and Cleaning for Livestock and Horses HERE
• CA Dept of Food & Agriculture Fact Sheet: New World Screwworm HERE
• CA Dept of Food & Agriculture Fact Sheet: NWS Sample Collection Protocol HERE
• Texas A&M Agrilife Extension: New World Screwworm Myiasis: Protecting Human Health HERE
• Texas A&M Agrilife Extension: Companion Animal Care in Face of NWS HERE
• Texas A&M Agrilife Extension: NWS Threat To Swine Producers HERE
• Visual Comparison: New World Screwworm vs. Other Flies HERE
• New World Screwworm: What You Need To Know HERE
• CDC NWS What You Need To Know HERE
• Factsheet for NWS HERE
• Foreign Animal Disease Preparedness and Response Plan HERE
• USDA/APHIS NWS Response Playbook HERE
• NWS Producer Resources: Identifying NWS HERE
• NWS On-farm Preparedness HERE
• USDA/APHIS Pest Alert HERE
• NWS FAQ on Animal Drugs for Veterinarians HERE
• NWS Domestic Readiness and Response Policy Initiative HERE
• Eradicating NWS with Sterile Insect Technique HsRE
• Fact Sheet NexGard Combo for CATS HERE,
• Fact Sheet NexGard Chewable for DOGS HERE
• Fact Sheet Credelio for DOGS HERE
• Fact Sheet Credelio CAT HERE
• Fact Sheet Ivomec Cattle HERE
• Fact Sheet Negasunt Powder Cattle, Horses, Swine, Goats, Sheep, Donkeys, Domestic hybrid equids, captive, wild, exotic azoo mammals HERE
• Fact Sheet Dectomax/Dectomax-CA1 Dairy Cattle, Horses, Swine, Sheep, Deer HERE
• Fact Sheet F10 Antiseptic Wound Spray with Insecticide

  Cattle, Horses, Minor Species of Hoof Stock, Raptors, Wild Birds, Pet Birds,Captive Wild, Exotic, and Zoo Mammals HERE

• Fact Sheet F10 Antiseptic Wound Ointment with Insecticide Cattle, Horses, Minor Species of Hoof Stock, Raptors, Wild Birds, Pet Birds,Captive Wild, Exotic, and Zoo Mammals HERE