A sign in the egg case at a local Safeway grocery store details Lucerne brand eggs that have been recalled at the store in Golden, Colorado August 21, 2010. A second Iowa egg farm is recalling eggs as part of an investigation into a U.S. salmonella outbreak that is linked to almost 300 illnesses across the country. REUTERS/Rick Wilking (UNITED STATES - Tags: BUSINESS FOOD HEALTH)