The U.S. Food and Drug Administration is still investigating the Iowa farm to try to find the source of contamination, though.
"Wright County Egg is fully cooperating with FDA's investigation by undertaking this voluntary recall," the company said in a statement. "Our primary concern is keeping salmonella out of the food supply and away from consumers."
Symptoms of salmonella-related illness could begin as many as three days after eating the eggs, and include fever, cramps and diarrhea, according to ABC News senior health and medical editor Dr. Richard Besser. Cooking eggs thoroughly greatly reduces the risk of salmonella poisoning.
Salmonella outbreaks accounted for 142 of the bacterial outbreaks in 2007, including two of the three largest, according to a report from CDC researchers in the Aug. 13 issue of Morbidity and Mortality Weekly Report. The outbreaks included 802 illnesses traced to tainted hummus, and 401 illnesses from frozen pot pies.
Rodents in food packaging and distribution facilities are the most common source of salmonella contamination.
The Associated Press contributed to this report.