Roos Foods, the company whose cheese products are connected to a Listeria outbreak that has killed one person, has expanded its ongoing recall to include sour cream.

The company is now recalling its Crema Pura Mexicana Cultured Sour Cream, produced in Kenton, DE.

Last week the company recalled 16 different cheese products under four brand names.

One California resident has died in connection to the outbreak. Another seven people from Maryland have been sickened, with seven total patients requiring hospitalization.

Three of those sickened were newborns.

The recalled products were distributed in Maryland, Virginia and the District of Columbia.