"Federal investigators found piles of manure up to eight feet tall, live mice, pigeons and other birds inside the hen houses at two egg farms suspected of causing a nationwide outbreak of salmonella illness, officials said Monday.
Investigators made public their observations of Wright County Egg and Hillandale Farms, two massive egg producers who have recalled nearly 500 million eggs since Aug. 13.
Salmonella enteritidis is a bacterium that lives in animal intestines, is often present in feces and can be spread by mice, birds, flies and other organisms. The Centers for Disease Control and Prevention estimate that at least 1,400 people have been sickened since May by eating eggs contaminated by the bacteria. It is the largest outbreak of the disease since federal officials began tracking it in the 1970s ... "