Health officials are trying to determine the source of a Salmonella outbreak that’s sickened more than four dozen people in the Indianapolis area this summer. Ten of the 56 people who have been afflicted with Salmonella have been hospitalized, but no one has become seriously ill, she said.

Those affected could have picked up the Salmonella from a restaurant, grocery store, untreated water source or even a lizard, which can carry the bacteria, said Lynae Granzow, an epidemiologist with the Indiana State Department of Health.