# Screwworm Quarantine: Mitchell County Case Puts Southwest Fisher County in Infested Zone 30

> The Texas Animal Health Commission confirmed a New World screwworm infestation in a bovine in Mitchell County on November 4 and imposed a quarantine on November 5. Infested Zone 30 covers parts of Fisher, Mitchell, Nolan and Scurry counties, and animals cannot leave the zone without inspection or authorization.

- Date: 2026-11-13 · published 2026-11-13T21:13:55.930Z
- Category: disease · region US · magnitude medium
- Page: https://feedsoft.ai/events/98502-screwworm-quarantine-mitchell-county-case-puts-southwest-fisher-county-in
- Commodities: [Live Cattle](https://feedsoft.ai/c/LCATTLE.md), [Feeder Cattle](https://feedsoft.ai/c/FCATTLE.md)

## Why it matters

Movement restrictions limit the flow of cattle out of the affected area, which can tighten local supply and add handling costs for producers. The quarantine could widen if the parasite spreads further.

## Read by commodity

- FCATTLE: neutral
- LCATTLE: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| LCATTLE | 2026-06-04 | [US screwworm case puts ranchers on alert, rallies cattle prices By Reuters](https://feedsoft.ai/events/12084-us-screwworm-case-puts-ranchers-on-alert-rallies-cattle-prices-by-reuters.md) | +0.6% | -1.0% |
| LCATTLE | 2025-08-15 | [In Texas cattle country, ranchers brace for flesh-eating screwworms \| Reuters](https://feedsoft.ai/events/23280-in-texas-cattle-country-ranchers-brace-for-flesh-eating-screwworms-reuters.md) | +1.1% | -0.1% |
| LCATTLE | 2026-06-05 | [US races to contain flesh-eating parasite screwworm, reports no further cases](https://feedsoft.ai/events/18948-us-races-to-contain-flesh-eating-parasite-screwworm-reports-no-further-cases.md) | +0.4% | -2.4% |
| LCATTLE | 2023-10-23 | [Mexico boosts controls on cattle after new screwworm case found near US border in Nuevo Leon](https://feedsoft.ai/events/33561-mexico-boosts-controls-on-cattle-after-new-screwworm-case-found-near-us-border.md) | +0.4% | -3.5% |
| LCATTLE | 2026-01-06 | [As Screwworm Inches Closer, When Could the U.S. Reopen the Southern Border to Cattle Imports? - Drovers](https://feedsoft.ai/events/21009-as-screwworm-inches-closer-when-could-the-u-s-reopen-the-southern-border-to.md) | -0.1% | +2.2% |
| FCATTLE | 2016-11-03 | [Quarantine of southeast Alberta ranches could last months, say CFIA officials \| CBC News](https://feedsoft.ai/events/73806-quarantine-of-southeast-alberta-ranches-could-last-months-say-cfia-officials.md) | -1.6% | -1.6% |
| FCATTLE | 2025-02-18 | [USDA will not ban cattle imports from Mexico over latest screwworm case, agency says \| Reuters](https://feedsoft.ai/events/25979-usda-will-not-ban-cattle-imports-from-mexico-over-latest-screwworm-case-agency.md) | +2.2% | +6.9% |
| FCATTLE | 2018-06-14 | [Latin American countries combat screwworm pest through IAEA Project DevelopmentAid](https://feedsoft.ai/events/64468-latin-american-countries-combat-screwworm-pest-through-iaea-project.md) | +2.6% | +3.7% |

## Sources

- doublemountainchronicle.com: https://www.doublemountainchronicle.com/news/screwworm-quarantine-mitchell-county-case-puts-southwest-fisher-county-infested-zone-30

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