(NewsNation) — Four people are dead and 19 more have been hospitalized following a listeria outbreak connected to recalled ready-to-eat pasta meals sold at grocery stores across the country, the Centers for Disease Control and Prevention announced.

As of Sept. 30, there have been 20 confirmed cases of listeria poisoning in connection with the outbreak across 15 states. The outbreak is linked to recalled ready-to-eat pasta meals sold at Walmart, Trader Joe's, Kroger, and Albertsons stores.

The listeria outbreak was initially announced in June by the CDC, when they began investigating reports of the illness. On Sept. 25, the Food Safety and Inspection Service issued a public health alert for ready-to-eat pasta meals that may be contaminated with listeria.

Where did people get sick?

Death

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