Table 2.

Guidelines for the classification of MLSI entries by risk setting for BC site (2010–2012)

MLSI risk setting classification	Definition
Private home	Exposure occurred in a private home
	Includes:
	Home-prepared food
Food premises	Any place where food intended for public consumption is sold, offered for sale, supplied, handled, prepared, packaged, displayed, served, processed, stored, transported or dispensed [21]
	Includes
	Popular expressions for food offered at establishments; “Chinese food” or “food item from Korean BBQ”
Farm	Farm and farm animal exposure
	Excludes:
	Exposures that are related to an occupation
	Exposures that are explicitly stated to have occurred at home e.g. “home farm”
Recreational	Local travel: petting zoo; pumpkin patch or park; activities including hiking, camping, hunting, recreational water contact or gardening; or exposure to lakes/rivers/creeks
	Excludes:
	Exposures that are explicitly stated to have occurred at home e.g. “gardening at home”; this should be classified as private home
	Food exposure during recreational activity e.g. food at a fair
Institutional	Long-term care facility, hospital, day care, support care facility
Workplace	Implied or directly stated work/occupational exposure
	Includes:
	Food consumed at work
Domestic travel	Exposure during travel outside Fraser Health Services Delivery Areas plus areas 38, 161, 162, 163, 164, 165, 166, 44, and 45 [20]
Other	Short-term stay shelter
Unclear	Where setting for an MLSI is not provided or is ambiguous