When people fell ill, the Canadian Food Inspection Agency went looking for the source which was suspected to be cheese.
What it found was Listeria monocytogenes, first on products from Le Cendré de Notre-Dame in the Temiskaming area of Quebec, then in La Vache à Maillotte brand Mélo-Dieux cheese from La Salle.
Now it has identified two more cheeses, Le Fromage au Village’s Le Casimir and Angelus brands. The company is at Lorraineville, Que.