据美国食品安全新闻网消息，根据最新统计，截止8月5日美国环孢子虫疫情已至少导致480人患病，至少27人住院就医。经调查发现，爱荷华州与内布拉斯加州的病例与袋装沙拉有关，目前还未找到其它州病例的感染源。

    部分原文报道如下：

    While the 236 illnesses in Iowa and Nebraska are known to be from salads served at Olive Garden and Red Lobster restaurants, investigators have not determined a definitive source for the illnesses in other states.

    Cyclospora is a single-celled parasite often associated with contaminated fresh produce. Symptoms can take several days or weeks to appear and include watery diarrhea, vomiting, fatigue, nausea and stomach cramps.

    原文链接：<http://www.foodsafetynews.com/2013/08/cyclospora-outbreak-hits-480/>