VANCOUVER, Wash. (AP) — A Vancouver, Wash., restaurant linked to several dozen cases of salmonella has reopened.

Clark County public health officials gave On The Border the go-ahead to reopen Monday although they still don’t know the source of the outbreak. As of Monday, The Columbian reports that health officials have confirmed 28 cases of salmonella linked to the restaurant and identified another 60 probable cases awaiting lab confirmation.