Blue Bell Ice Cream said it is voluntarily recalling select ice cream products over concerns they could be contaminated with Listeria bacteria. 
 
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 The company said in a statement that chocolate chip cookie dough in the ice cream could potentially contain the Listeria bacteria and cause infection. The dough was made by a third-party supplier called Aspen Hills Inc., Blue Bell said. 
 
 "No illnesses have been reported to date, but Blue Bell is taking this step because we remain committed to producing a safe, high-quality, great-tasting ice cream for you and your family to enjoy," the company said in a Facebook post. 
 
 The ice cream was distributed in 10 states: Alabama, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee and Virginia. 
 
 Aspen Hills Inc. did not immediately respond to a request for comment. 
 
 The voluntary recall comes about a year after a previous Listeria outbreak linked to Blue Bell ice cream led to the company’s recalling multiple products and temporarily shutting down production. 
 
 Listeria is a potentially dangerous bacterial infection that can cause fever, headache, nausea and diarrhea. It can be especially dangerous for people with weakened immune systems or pregnant women. 
 
 The recall affects the following products. 
 
 Blue Bell Ice Cream Half Gallons: Code Dates 
 
 Blue Bell Chocolate Chip Cookie Dough 082618226 
 
 Blue Bell Cookie Two Step 080418222, 081818224 
 
 Blue Bell Ice Cream Pints: Code Dates 
 
 Blue Bell Chocolate Chip Cookie Dough 081518242, 082418242 
 
 More information on the recall can be found here. 

 New listeria scare leads Blue Bell to recall 2 flavors 
 
 A year after ice cream from Blue Bell Creameries began slowly returning to supermarkets following a bacteria contamination linked to 10 listeria cases, including three deaths, the Brenham-based ice cream icon is once again pulling some of its products from store shelves. 
 
 On Wednesday, Blue Bell announced a recall of "select products" that came from its plant in Sylacauga, Ala. because they were made with a chocolate chip cookie dough ingredient supplied by a vendor that was "potentially" contaminated with Listeria monocytogenes. 
 
 The cookie dough ingredients came from Garner, Iowa-based Aspen Hills, Inc. 
 
 The Blue Bell Chocolate Chip Cookie Dough and Blue Bell Cookie Two Step ice cream products were not sold in Texas, but they were distributed in 10 states throughout the south, including Louisiana. 
 
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 In a statement on its website, Blue Bell identified the potential problem through what the creamery called "intensified internal testing" and notified Aspen Hills, which then issued a voluntary recall. 
 
 Listeria monocytogenes can cause serious and sometimes fatal infections in young children, frail or elderly people and with those with a weakened immune system. For normally healthy people, eating some of the contaminated ice cream can cause short-term illnesses such as a fever, nausea and diarrhea. A listeria infection can result in miscarriages and stillbirths for pregnant women. 
 
 To date, no illnesses have been reported due to the potential listeria contamination. "Although our products in the marketplace have passed our test and hold program, which requires that finished product samples test negative for Listeria monocytogenes, Blue Bell is initiating this recall out of an abundance of caution," company officials said Wednesday. 
 
 Aspen Hills reported shipping 578 cases of the suspicious "no egg chocolate chip cookie dough" to the Alabama plant on July 26. They shipped a further 1,358 cases to Brenham between Aug. 9 and Aug. 22. 
 
 After the 2015 listeria outbreak, the company halted production. With a significant investment from Fort Worth oil billionaire Sid Bass, Blue Bell began returning to shelves about a year ago. The economic impact of the latest voluntary recall was not immediately clear. 
 
 Marion Nestle, a professor of nutrition, food studies and public health at New York University, questioned the method Blue Bell used to evaluate its products before being shipped out. 
 
 PHOTOS: A timeline of the 2015 Blue Bell recall 
 
 "You can make a mistake once but for a company to make a mistake twice?" Nestle asked. "Obviously, they weren't doing something if they shipped something they tested." 
 
 A Seattle-based attorney specializing in food safety issues also raised a question about the supplier. Bill Marler negotiated a settlement with a Florida man who got sick after eating Blue Bell ice cream that tested positive for listeria. On Wednesday, he wondered if Aspen Hills - the vendor that provided the potentially contaminated items - also employed the "test and hold" method to ensure their products are safe for human consumption. 
 
 "If they had done that, then arguably that ingredient would never have made it into Blue Bell's products," Marler said. "The real question is, have they (Blue Bell) required their vendors to do that?" 
 
 Blue Bell Creameries was fined $175,000 as part of a settlement with Texas health officials as a result of the 2015 listeria outbreak. The settlement requires Blue Bell to continue practices mandated by the Department of State Health Services in May 2015, such as withholding each lot of ice cream from distribution until tests come back negative. 
 
 On Wednesday, the state officials said the company notified them within 24 hours of receiving the lab-confirmed positive sample for listeria, as required by the agreement Blue Bell signed. 
 
 "Through the use of Blue Bell's test and hold protocol, no finished product that has been tested and confirmed positive for (listeria) at the Brenham plant has entered the marketplace in Texas," the Department of State Health Services said in a statement. 
 
 Blue Bell issued a series of incremental recalls when the original listeria outbreak was first discovered in early 2015. The company initially insisted the problems were limited to a small amount of ice cream. Blue Bell eventually shut down its entire operation and admitted ongoing sanitation problems across its plants. The company laid off or furloughed more than 2,800 employees and Blue Bell brand ice cream was unavailable in stores from April through August of 2015. 
 
 Bass bailed out the family-run company with a cash infusion of up to $125 million. All of its furloughed workers returned to work and some of their laid off employees were rehired. 
 
 The latest Blue Bell recall follows another high-profile food contamination case. The Chipotle Mexican Grill burrito chain temporarily shuttered dozens of restaurants late last year after two E. coli outbreaks in Washington and Oregon sent 21 people to the hospital. Health officials identified a second outbreak that infected five people in the Midwest. 
 
 Although the possible listeria contamination is another setback for Blue Bell, Marler said the company is likely more concerned about the ongoing federal inquiry. Under U.S. law, it's a misdemeanor to distribute tainted food and heavier penalties can be levied if it's done knowingly. 
 
 "The criminal investigation is still ongoing," Marler said. "They have bigger concerns than," the latest listeria-based recall. 
 
 Katherine E. Blunt and Will Axford contributed to this report.
– Blue Bell is now about as synonymous with listeria as it is with ice cream—and apparently for good reason. Following a listeria outbreak last year and the discovery of the bacteria at one of its facilities in January, the company says it's voluntarily recalling two ice cream flavors that may be contaminated with listeria, per the Houston Chronicle. No illnesses have been reported. The Chocolate Chip Cookie Dough and Cookie Two Step varieties—produced in Sylacauga, Ala., and distributed to Alabama, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, and Virginia, per ABC News—include an ingredient from vendor Aspen Hills that "potentially" contains the bacteria, the company says. However, it says the ice cream passed its tests for listeria.