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A USDA-APHIS extension article recaps the 2016 confirmation of New World screwworm in a Florida Key deer, after which eradication was completed. It warns that rapid identification protocols and awareness need to improve to prevent a similar outbreak.
Screwworm is a serious livestock pest, and any renewed US outbreak could trigger movement restrictions and cattle market disruption. The article points to preparedness rather than a current supply shock, so the price effect is limited.
u.osu.eduSmith at2017年8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。
