Orange County, California, health officials closed the Souplantation restaurant in Lake Forest on Saturday after the total number of individuals affected by an E. coli outbreak connected with the restaurant reached 14. That number includes 12 customers and one restaurant employee, a busboy.

The most recent customer identified ate at the restaurant on March 25, while others affected had eaten there on March 23 or 24. The source of the E. coli has not been determined.

Of the 14 people who have tested positive for the pathogen, two were hospitalized and released, and one “