Tomatoes from Florida and Mexico are safe to eat again, according to the U.S. Food and Drug Administration, which lifted its warning about the risk of salmonella contamination.

It's "highly unlikely" that tomatoes implicated in the outbreak of Salmonella Saintpaul are still on the market, said David Acheson, associate commissioner for foods at the FDA, on a conference call Thursday with reporters. The illness has infected at least 1,220 people since mid-April, including 224 who required hospitalization, officials said today.