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Costa Rica declared the re-emergence of New World screwworm a national emergency on February 7, 2024, nearly seven months after its first case since the late 1990s. The declaration unlocks resources to prevent, control and eradicate the parasite, with case counts and geographic spread rising.
USDA suspended Costa Rica's screwworm-free status in August 2023, adding requirements on live animal imports.
Live cattle imports into the US from Costa Rica face tighter requirements, a marginal supply factor in a market already tight on cattle. The outbreak mainly signals animal-health risk for the region rather than a major price driver.
web.archive.org2024年2月16日在过去 69 次中性的疫病事件之后，活牛 在 5 个交易日内中位数变动 -0.1%（42% 上涨；中间一半区间为 -0.8% 至 +0.6%），20 个交易日内为 +0.9%。
各商品基准价相对事件前最后收盘价的变动。历史数据汇总同类过往事件；仅描述已发生的情况，不代表未来走势。不构成投资建议。
