New World Screwworm
Managing the threat and protecting animal health
The New World screwworm is a fly larva that can burrow into and feed on the flesh of living warm-blooded animals like livestock, wildlife, birds, pets, and even humans. The Arizona Livestock Incident Response Team (ALIRT) is leading efforts to detect the pest and protect Arizona's livestock.
Early detection is critical as the screwworm can quickly cause serious harm. If you have animals, be sure to inspect for wounds regularly, treat wounds promptly, and watch for unusual or non-healing wounds. Report suspected cases immediately to diseasereporting@azda.gov.
Livestock Inspection Guide for New World screwworm
Detailed instructions on how to check your animals for the screwworm and report suspected cases.
Free New World screwworm sampling kits
Pick up a free sampling kit from your local Extension office today. If you suspect a screwworm case during routine inspections, you can collect a sample immediately and contact your veterinarian.
Track reported case locations
The latest information from the USDA and partnering organization on the location and status of confirmed cases.
Screwworm outreach and education toolkit
Help raise awareness and protect Arizona's livestock and wildlife. This toolkit includes ready-to-use social media posts and educational posters about what screwworm is and why it's important to report cases.
Educational Materials
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