# US, Mexico step up joint efforts to contain flesh-eating parasite outbreak

> US and Mexican governments agreed to step up joint efforts to contain a screwworm outbreak in southern Mexico. Secretary Rollins had threatened to close the border to livestock and animal commodity imports, and she requested permission for preventive measures such as aerial releases of sterile flies.

- Date: 2025-04-29 · published 2025-04-29T12:00:00.000Z
- Category: disease · region Mexico · magnitude medium
- Page: https://feedsoft.ai/events/25086-us-mexico-step-up-joint-efforts-to-contain-flesh-eating-parasite-outbreak
- Commodities: [Live Cattle](https://feedsoft.ai/c/LCATTLE.md), [Feeder Cattle](https://feedsoft.ai/c/FCATTLE.md)

## Why it matters

Mexico supplies over a million cattle a year, so the agreement lowers the risk of a border closure that would tighten US feeder supply.

## Read by commodity

- FCATTLE: bearish ▼
- LCATTLE: bearish ▼

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| LCATTLE | 2025-04-30 | [United States and Mexico Reach Agreement to Resume Eradication Efforts on New World Screwworm](https://feedsoft.ai/events/25078-united-states-and-mexico-reach-agreement-to-resume-eradication-efforts-on-new.md) | +0.4% | +2.1% |
| LCATTLE | 2025-10-23 | [Mexican ag minister to discuss with US counterpart opening border to cattle amid screwworm outbreak \| Reuters](https://feedsoft.ai/events/22362-mexican-ag-minister-to-discuss-with-us-counterpart-opening-border-to-cattle.md) | -2.0% | -7.9% |
| LCATTLE | 2019-01-15 | [Foot and mouth outbreak to impact beef exports - Moneyweb](https://feedsoft.ai/events/61044-foot-and-mouth-outbreak-to-impact-beef-exports-moneyweb.md) | +0.5% | +1.5% |
| LCATTLE | 2018-01-01 | [Canada Blocks Texas Cattle as Flesh-Eating Screwworm Returns to the US After 60 Years](https://feedsoft.ai/events/66963-canada-blocks-texas-cattle-as-flesh-eating-screwworm-returns-to-the-us-after-60.md) | -0.4% | +1.9% |
| LCATTLE | 2026-03-31 | [USDA Eyes Phased Reopening of Southern Border to Mexican Feeder Cattle - RFD](https://feedsoft.ai/events/20115-usda-eyes-phased-reopening-of-southern-border-to-mexican-feeder-cattle-rfd.md) | +3.8% | +5.0% |
| FCATTLE | 2025-04-30 | [United States and Mexico Reach Agreement to Resume Eradication Efforts on New World Screwworm](https://feedsoft.ai/events/25078-united-states-and-mexico-reach-agreement-to-resume-eradication-efforts-on-new.md) | +0.6% | +0.5% |
| FCATTLE | 2025-10-23 | [Mexican ag minister to discuss with US counterpart opening border to cattle amid screwworm outbreak \| Reuters](https://feedsoft.ai/events/22362-mexican-ag-minister-to-discuss-with-us-counterpart-opening-border-to-cattle.md) | -4.7% | -6.4% |
| FCATTLE | 2018-01-01 | [Canada Blocks Texas Cattle as Flesh-Eating Screwworm Returns to the US After 60 Years](https://feedsoft.ai/events/66963-canada-blocks-texas-cattle-as-flesh-eating-screwworm-returns-to-the-us-after-60.md) | +0.3% | +0.8% |

## Sources

- azfamily.com: https://www.azfamily.com/2025/04/29/us-mexico-step-up-joint-efforts-contain-flesh-eating-parasite-outbreak/

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