Popular cereal linked to salmonella outbreak in 33 states

Experts are warning the public not to eat Kellogg's Honey Smacks after the cereal has been linked to 100 cases of salmonella over the past few months.

What are the details?

After the outbreak was discovered, Kellogg issued a recall in June of packages with "best if used by dates" ranging from June 14, 20018, through June 14, 2019.

On Thursday, the Centers for Disease Control and Prevention announced that 100 people in 33 states have been infected. The CDC tweeted: "Do not eat this cereal."

As more cases rolled in, the US Food and Drug Administration told the public on Friday: "The FDA is advising consumers to not eat and to discard any Kellogg's Honey Smacks cereal. This is regardless of size or 'best if used by' dates.

"The recall notice accounts for all of the product that is on the market within the cereal's estimated one year shelf-life. However, Honey Smacks products with earlier dates could also potentially be contaminated."

Anything else?

A spokesperson from Kellogg said in an emailed statement to CNBC: "We continue to work with the FDA and the third-party manufacturer to determine how this happened to ensure it doesn't happen again.

"Kellogg is asking that people who purchased potentially affected product discard it and contact the company for a full refund."

According to the CDC, children under 5 are at the highest risk of being infected by salmonella, which is a bacterial disease that affects the intestines. Symptoms include nausea, vomiting, diarrhea, abdominal cramps, headache, and chills, and typically last anywhere from two to ten days.