# With 6th screwworm case, Arizona widens infested zones in 3 counties

> The Arizona Department of Agriculture confirmed a sixth screwworm case, in a horse in Pearce, Cochise County, and declared three active response areas in Cochise, Greenlee and Graham counties. Movement restrictions and sterile fly releases are being used to contain the outbreak.

- Date: 2026-11-11 · published 2026-11-12T00:16:28.389Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/94464-with-6th-screwworm-case-arizona-widens-infested-zones-in-3-counties
- Commodities: [Live Cattle](https://feedsoft.ai/c/LCATTLE.md), [Feeder Cattle](https://feedsoft.ai/c/FCATTLE.md)

## Why it matters

Expanding infested zones and movement restrictions in Arizona tighten livestock marketing and raise the risk of further restrictions on cattle and horses, supporting cattle prices.

## Read by commodity

- FCATTLE: bullish ▲
- LCATTLE: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| LCATTLE | 2026-05-01 | [More Screwworm Cases in Mexico Threaten Cattle Trade With US](https://feedsoft.ai/events/19652-more-screwworm-cases-in-mexico-threaten-cattle-trade-with-us.md) | +0.1% | +1.1% |
| LCATTLE | 2026-06-09 | [Texas screwworm case drives cattle rally](https://feedsoft.ai/events/18947-texas-screwworm-case-drives-cattle-rally.md) | +0.7% | -2.1% |
| LCATTLE | 2026-01-03 | [U.S. livestock: Cattle futures surge as second screwworm case announced \| The Western Producer](https://feedsoft.ai/events/21012-u-s-livestock-cattle-futures-surge-as-second-screwworm-case-announced-the.md) | +0.0% | +1.1% |
| LCATTLE | 2026-06-04 | [New World Screwworm Confirmed in US - CME Feeder Cattle Futures Surge After Early Slide](https://feedsoft.ai/events/12085-new-world-screwworm-confirmed-in-us-cme-feeder-cattle-futures-surge-after-early.md) | +0.6% | -1.0% |
| LCATTLE | 2026-06-25 | [The screwworm parasite continues to spread in Texas, threatening cattle and wildlife : NPR](https://feedsoft.ai/events/18767-the-screwworm-parasite-continues-to-spread-in-texas-threatening-cattle-and.md) | -2.9% | -10.1% |
| FCATTLE | 2026-05-01 | [More Screwworm Cases in Mexico Threaten Cattle Trade With US](https://feedsoft.ai/events/19652-more-screwworm-cases-in-mexico-threaten-cattle-trade-with-us.md) | -2.0% | -6.8% |
| FCATTLE | 2026-06-09 | [Texas screwworm case drives cattle rally](https://feedsoft.ai/events/18947-texas-screwworm-case-drives-cattle-rally.md) | +3.1% | +3.2% |
| FCATTLE | 2025-05-27 | [Screwworm cases prompt another border closure](https://feedsoft.ai/events/24640-screwworm-cases-prompt-another-border-closure.md) | +0.5% | +0.6% |

## Sources

- azcentral.com: https://www.azcentral.com/story/news/environment/2026/11/11/6th-screwworm-case-arizona-widens-infested-zones-in-3-counties/92724232007/

---
Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.