Educational Resources by Region | Veterinary Entomology

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Veterinary Entomology

Screwworm Information

New World screwworm (NWS) is a serious pest of livestock and wildlife.

This invasive pest we previously eradicated from the United States, but has recently been reintroduced (June 2026). Website links below provide information on screwworm, including prevention and treatment for screwworm. Treatment and prevention, as well as reporting requirements, often vary by state - contact animal health officials in your state for state-specific requirements and recommendations.

FEDERAL RESOURCES

USDA-APHIS - Screwworm.gov

US Animal Health Association

Centers for Disease Control

STATE RESOURCES

California Department of Food and Agriculture (CDFA)
- https://www.cdfa.ca.gov/ahfss/Animal_Health/screwworm/
University of California at Riverside
- https://murillolab.ucr.edu/screwworm
Florida Department of Agriculture & Consumer Services
- https://www.fdacs.gov/Agriculture-Industry/Pests-and-Diseases/Animal-Pests-and-Diseases/New-World-Screwworm
Texas Animal Health Commission
- https://www.tahc.texas.gov/emergency/nws.html
Texas A&M Agrilife Extension
- https://agrilifeextension.tamu.edu/new-world-screwworm
New Mexico State University
- https://screwwormnm.org/
University of Tennessee
- https://vectorvbdwatch.tennessee.edu/cochliomyia-hominivorax/

COMMODITY GROUP RESOURCES

AVMA
- https://www.avma.org/resources-tools/one-health/veterinarians-and-public-health/new-world-screwworm
NCBA
- https://www.ncba.org/education-resources/industry-updates-resources/new-world-screwworm-resources
Swine Health Information Center
- https://www.swinehealth.org/wp-content/uploads/2026/01/SHIC-Fact-Sheet-NWS-Considerations-for-Swine-1-2026.pdf
American Sheep Industry Association
- https://www.sheepusa.org/education-resources/animal-health/new-world-screwworrm-resources

Educational Resources

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Northeast

Select a link below to visit University Extension Information on veterinary pests.

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Southeast

Click on university logo to visit their extension page.

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Central

Click on university logo to visit their extension page.

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West

Click on university logo to visit their extension page.

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International

Click on university logo to visit their extension page.

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Northeast

Southeast

Central

West

International

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