Lettuce sold in both Tennessee and Kentucky has been recalled.
A California farm is recalling lettuce that may be tainted with E.coli bacteria.
The producer says a shipment of romaine lettuce was sold as "Tanimura and Antle Field Fresh Wrapped Single Head Romaine."
It may have a sell-by date of August 19 on its plastic bag.
The lettuce was sold in Tennessee and Kentucky, along with 17 other states.
No illnesses have been reported.