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A South Australian veterinarian outlined biosecurity threats beyond bird flu, including Aujeszky's disease detected in the US in April and New World screwworm spreading through Mexico. She described screwworm as a serious threat to live animals.
Screwworm spread toward the US could tighten cattle movement and import controls, which would support live cattle prices.
stockjournal.com.auPaula Thompson2026年9月3日在过去 148 次看涨的疫病事件之后，活牛 在 5 个交易日内中位数变动 +0.4%（62% 上涨；中间一半区间为 -0.5% 至 +1.2%），20 个交易日内为 +1.4%。
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。
