# Legacy icon: Screwworm - San Antonio Business Journal

> A historical feature recalls the screwworm parasite's devastation of Southern livestock in the late 1940s through 1960s. It describes how infested animals died and how ranchers had to treat them daily.

- Date: 2023-11-10 · published 2023-11-10T12:00:00.000Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/33107-legacy-icon-screwworm-san-antonio-business-journal
- Commodities: [Live Cattle](https://feedsoft.ai/c/LCATTLE.md), [Feeder Cattle](https://feedsoft.ai/c/FCATTLE.md)

## Why it matters

The article is background only, with no new outbreak or policy change affecting current supply or prices.

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| LCATTLE | 2024-08-05 | [Screwworm menace affecting animals in Senegal - FAO
						 \| The Beef Site](https://feedsoft.ai/events/28720-screwworm-menace-affecting-animals-in-senegal-fao-the-beef-site.md) | -0.2% | -2.0% |
| LCATTLE | 2025-09-22 | [Mexico Confirms Case of New World Screwworm in Nuevo Leon \| Animal and Plant Health Inspection Service](https://feedsoft.ai/events/22806-mexico-confirms-case-of-new-world-screwworm-in-nuevo-leon-animal-and-plant.md) | -0.8% | +0.3% |
| LCATTLE | 2017-12-22 | [FMD awareness remains important \| Western Livestock Journal](https://feedsoft.ai/events/67448-fmd-awareness-remains-important-western-livestock-journal.md) | +2.1% | +1.1% |
| LCATTLE | 2017-08-16 | [New World Screwworm Still a Threat \| Ohio BEEF Cattle Letter](https://feedsoft.ai/events/69399-new-world-screwworm-still-a-threat-ohio-beef-cattle-letter.md) | -3.9% | -6.2% |
| 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% |
| FCATTLE | 2024-08-05 | [Screwworm menace affecting animals in Senegal - FAO
						 \| The Beef Site](https://feedsoft.ai/events/28720-screwworm-menace-affecting-animals-in-senegal-fao-the-beef-site.md) | -1.3% | -3.7% |
| FCATTLE | 2025-09-22 | [Mexico Confirms Case of New World Screwworm in Nuevo Leon \| Animal and Plant Health Inspection Service](https://feedsoft.ai/events/22806-mexico-confirms-case-of-new-world-screwworm-in-nuevo-leon-animal-and-plant.md) | -0.6% | +3.6% |
| 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

- bizjournals.com: https://www.bizjournals.com/sanantonio/news/2023/11/10/legacy-icon-screwworm.html

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