The number of confirmed salmonella cases in Williston is up to 12 — with one death. And state health officials don’t know if the outbreak is over. The Health Department is broadening its investigation beyond one particular grocery store where some of the victims bought prepared food.

State Epidemiologist Kirby Kruger says officials are exploring whether a contaminated food product could have been distributed to several different establishments in the area.

The Health Department also is consulting with the Centers for Disease Control and Prevention to see if other states have reported similar outbreaks. Kruger says he hopes to get an answer early next week.

The woman in Williston who died was older than 65. She has not been identified. Four of the Williston victims have been hospitalized — but are now in various stages of recovery at home.