Washington (CNN) -- The recall of more than half a billion eggs over the past two weeks is the "largest such egg recall in recent history" and the Food and Drug Administration "may need to continue with smaller subrecalls," FDA Commissioner Margaret Hamburg said on CNN's "American Morning" on Monday.
"We have a very complicated network of food distribution in this country," Hamburg said. "You start with a couple of farms in Iowa and you can get nationwide exposure."
http://edition.cnn.com/2010/HEALTH/0...ex.html?hpt=T2
Note:August 23, 2010 Updated 1510 GMT