According to the Gallatin County Health Department, Dave’s Sushi in Bozeman is closed until further notice due to possible foodborne illnesses. The health department was notified of possible foodborne illness linked to eating at Dave’s Sushi on April 17. At this time, it is unclear what pathogen caused the illness.

On April 18, the health department performed an inspection and reportedly found Dave’s Sushi with four violations.
Dave’s Sushi will remain closed until further notice, pending a full investigation. According to a press release from the Gallatin City-County Health Department, the illnesses have been linked to eating at Dave’s Sushi on the afternoon of April 17, as well as April 1, April 8, April 9, and April 10.
Yesterday the FDA posted on its website:
A new investigation has been added to the table (ref#1152). Although the pathogen/cause of illness and products linked to illnesses is not yet identified, there are 13 illnesses from one state linked to a single restaurant that has suspended operations. FDA has initiated traceback in coordination with state partners.

It does seem a bit coincidental.