Consumers shouldn’t eat pre-cut cantaloupe if they don’t know the source, U.S. health officials said Thursday, as the number of illnesses and recalls tied to a deadly salmonella outbreak grows.

At least 117 people in 34 U.S. states have been sickened by contaminated cantaloupe, including 61 who were hospitalized and two who died, according to the Centers for Disease Control and Prevention. Another 63 illnesses, 17 hospitalizations and one death tied to the same outbreak have been reported in Canada.

The illnesses are severe, with more than half of infected people hospitalized, including residents of long-term care centers and children in day care, the CDC said.

Previous recalls of whole and pre-cut cantaloupes have been expanded to include Kwik Trip markets, Bix Produce and distributor GHGA, which sent recalled products to Kroger, Sprouts Farmer’s Markets and Trader Joe’s stores in several states, according to the U.S. Food and Drug Administration.