Public health officials in Idaho have identified an outbreak of norovirus associated with a Subway restaurant in Canyon County. Approximately 25 customers of the store reported gastrointestinal symptoms of short duration commencing Friday March 19th.

According to preliminary press reports, the facility "followed all guidance and recommendations".  It is possible that a worker handling food ingredients or sandwiches could have been responsible for the outbreak through procedural deficiencies with respect to gloving and hand washing. The investigation of source will include an examination of workers.