Update (March 29, 5:30 PM PST): The U.S. Department of Agriculture Food Safety and Inspection Service has posted a distribution list of where affected products were sent. That list includes Wal Mart stores nationwide, Winn-Dixie stores in Florida, and a variety of retailers in Michigan.

At least 24 people in 15 states have fallen ill with E. coli O121 in an outbreak traced back to Farm Rich brand frozen pizzas, quesadillas, philly cheese steaks and mozzarella bites, the U.S. Centers for Disease Control and Prevention has confirmed, following initial reports Thursday evening.

Seven people have been hospitalized in connection to the products, which were sold nationwide. One patient has developed hemolytic uremic syndrome.

The number ill by state is as follows:

Alabama (1), Arkansas (1), Illinois (1), Indiana (2), Michigan (2), Mississippi (1), New York (3), Ohio (3), Pennsylvania (1), South Dakota (1), Texas (3), Utah (1), Virginia (1), Washington (1) and Wisconsin (2).

A laboratory within the New York State Department of Health identified the O121 strain in an open package of Farm Rich frozen chicken quesadillas from an ill patient’s home.

On Thursday, Farm Rich announced a voluntary recall of seven different products, the full list of which is copied here:

  • 7.2-oz. cartons of Farm Rich mini pizza slices with cheese pepperoni and sauce in pizza dough, UPC code 041322376909 with a best by date of May 15 or May 16, 2014.
  • 22-oz. cartons of Farm Rich mini pizza slices with cheese pepperoni and sauce in pizza dough, UPC code 041322356437 with a best by date of May 15 or May 16, 2014.
  • 18-oz. bags of Farm Rich mini quesadillas with cheese, grilled white meat chicken in a crispy crust, UPC code 041322356352 with a best by date of May 14, 2014.
  • 21-oz. bags of Farm Rich philly cheese steaks with cheese, beef & onions in a crispy crust, UPC code 041322356345 with a best by date of May 13, 2014.
  • 22-oz. cartons of Farm Rich mozzarella bites in a pizzeria style crust, UPC code 041322374431 with a best by date of May 19, 2014.
  • 7-oz. cartons of Farm Rich mozzarella bites in a pizzeria style crust, UPC code 041322376916 with a best by date of May 19, 2014.
  • 22-oz. bags of Market Day Mozzarella Bites, UPC code 041322804358 with a best by date of May 12, 2014.

Those found ill range in age from 2 to 75 years old, with 78 percent being 21 years old or younger. Sixty-three percent are female.

Illness onset dates range from Dec. 30, 2012 to March 9, 2013. The recalled products were made between Nov. 12 and 19, 2012, and then shipped to retailers nationwide.

Persons infected with the outbreak strain of STEC O121, by state

a. Persons infected with the outbreak strain of E. coli O121, by date of illness onset

Graphics courtesy of CDC.