About 22,000 cartons of lettuce distributed by a Salinas, Calif., company are being pulled from store shelves across the nation after tests came back positive for salmonella.
No illnesses have been reported but Tanimura & Antle Inc. --where the romaine lettuce is processed-- said it is going forth with precautionary measures.
Tanimura & Antle Inc. has extended the U.S. product recall to all 50 states, as well as Canada and Puerto Rico.
Bob Perkins, executive director of the Monterey County Farm Bureau in California, said the impact is not widespread.
"The good news is that since it is an individual find, it appears to have been limited and also we've had no reports of illness from it," Perkins said.
The recall was a voluntary response from the company after a test by the Wisconsin Department of Agriculture found the bacteria.
Salmonella is an organism that can cause serious illness, fatal infections and in rare cases even death.
Among the cartons recalled are those harvested between June 25 and July 2. The bad lettuce was sold to retail and wholesale outlets across the U.S., Canada and Puerto Rico.
The Department of Agriculture is taking full precaution after spinach containing e-coli killed three people and sickened 200 others from the Salinas Valley in 2006.
Sources: Associated Press, KGO-TV San Francisco