加载中…

A long-form feature recounts the history of the New World screwworm, a parasite that once killed millions of dollars of US cattle a year before eradication. It describes the 2016 outbreak that struck deer in the Florida Keys and the eradication program's history.
A screwworm resurgence in US livestock would raise animal health costs and could restrict cattle movements, but the article is historical background with no new outbreak in the US cited.
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。