据美国食品安全新闻网消息，近日美国食品药品管理局（FDA）在检查时发现，爱荷华州的2家禽舍内出现了海德堡沙门氏菌，8月14日禽舍所在的养殖场收到了来自美国FDA的警告信。该家养殖场曾经是2010年美国大规模鸡蛋沙门氏菌疫情的源头。
部分原文报道如下：
The company that took over Iowa's two most troubled egg businesses now has food safety problems of it own to deal with at its recently acquired facilities.
Centrum Valley Farms acquired all the Iowa egg production facilities formerly operated by Austin "Jack" DeCoster and his son Peter -- site of the nation's largest egg recall in 2010 -- via a long-term lease in late 2011. Centrum Valley is now being warned about bacteria in two of its six poultry houses located near Clarion, IA.
Iowa's egg industry -- the largest in the nation -- was more than relieved when Centrum, owned by three long-time Iowa egg producing families, took over the Iowa properties in DeCoster's national egg empire.
Wright County Egg Co. near Clarion/Galt, IA and the nearby Hillandale Farms at West Union had to recall more than one half billion eggs in 2010 after contamination at the two facilities was connected to a nationwide outbreak of Salmonella Enteritidis that sickened at least 1,900 people.
U.S. Food and Drug Administration （FDA） inspectors who visited the Centrum facilities between April 30 and May 4 of 2012 discovered Salmonella Heidelberg in the Clarion/Galt poultry houses. On August 14, Centrum Valley Farms received a warning letter from FDA.
The egg company was quick to issue a statement, saying bacteria in the poultry houses do not necessarily mean the eggs are contaminated. It held back eggs from those poultry houses, testing them until it got four negative results and FDA approval before shipping them.
原文链接：<http://www.foodsafetynews.com/2012/09/salmonella-heidelberg-found-in-iowa-poultry-houses/>
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