Nicole Mathewson writes: Supermarket owner Foodstuffs has confirmed two products sold at its stores may be responsible for a severe outbreak of a gastrointestinal bug.

About 127 people have been affected and 38 hospitalised by the yersinia pseudotuberculosis outbreak since it first appeared last month.

Foodstuffs, the company which owns New World, Pak’n Save and Four Square, said it had viewed the report which named two of its products, Pam’s fresh express mesclun salad lettuce and Pam’s fresh express lettuce, as possible sources.

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