The U.S. Centers for Disease Control and Prevention said at least 23 people have been infected with Listeria, one died and 22 became ill. The source of the infection may be a brand of ice cream in Florida.

  CBS reported on July 5, citing a statement from the Centers for Disease Control and Prevention, that the infected population was distributed in 10 states in the United States, and almost all of the patients had been to Florida or residents of Florida one month before the onset of symptoms, including five pregnant women.

  Florida ice cream maker Big Olaf Creamery, whose products are sold only in Florida, may be involved.

CNN, citing an investigation of 17 infected people, reported that 14 had recently eaten ice cream, and six had eaten ice cream from Big Olaf Creamery or in the area where the brand's products are sold.

  Big Olaf Creamery said in a statement on the 3rd that the link between its products and cases of Listeria infection has not been established and the company is cooperating with the investigation.

  The CDC advises consumers to stop consuming the aforementioned brands of ice cream products and to clean storage areas and containers.

The agency also advised retailers to do a good job of cleaning, stop selling related products, and wait for follow-up notices.

  Listeria monocytogenes is a common pathogenic bacteria that uses food as an infectious agent. It is widely distributed and has strong adaptability. It can survive in the low temperature environment of the refrigerator.

The U.S. Centers for Disease Control and Prevention said that after contracting Listeria, symptoms such as diarrhea and fever can occur up to 70 days later, and most patients can recover on their own.

People with weakened immune systems, such as the elderly, pregnant women and people with chronic diseases, are the most susceptible and even life-threatening.