A recall of cucumbers related to a salmonella outbreak that has left 68 people sickened has expanded to include produce sold by two additional companies in 25 states. The expanded recall comes just days after the U.

Over the weekend, the threat of salmonella triggered the recall of 10,000 cartons of organic eggs sold at Costco and whole cucumbers sold in 28 states.

Federal regulators, which have fielded reports from 19 states, say the number of people sickened may be much higher.