(CBS SF / CNN) — Eighty-seven more people, including 39 in California, have been sickened with salmonella linked to recalled beef products, the US Centers for Disease Control and Prevention said Wednesday.

A total of 333 have become ill and 91 have been hospitalized since illnesses began in August. No deaths have been reported.

READ MORE: Fauci: Early Reports on Omicron Variant Encouraging

Illnesses have been reported in 28 states; Michigan, Mississippi and West Virginia are the latest.

In California, a total of 107 illnesses have been reported since August, the most of any state.

CDC Map of Reported Salmonella Infections

The CDC said the outbreak investigation is ongoing.

READ MORE: Man Shot Multiple Times, Critically Injured in Santa Rosa Saturday Night

JBS Tolleson Inc. has recalled more than 12 million pounds of beef products that might have been contaminated with salmonella. The products were produced and packaged between July 26 and September 7, distributed nationwide and sold in more than 100 stores. A list of the states and distributors that received the contaminated meat, including Walmart and Kroger, is available from the US Department of Agriculture.

The CDC recommends that consumers check their freezers for beef they may have stored and look for establishment number EST. 267. Any beef associated with the recall should be returned or discarded.

The USDA said people should “only consume ground beef that has been cooked to a temperature of 160°F. Other cuts of beef should be cooked to a temperature of 145°F and allowed to rest for at least 3 minutes.”

Salmonella symptoms usually appear within 12 to 72 hours of consuming food that has been contaminated. Symptoms include diarrhea, abdominal cramps and fever and can last four to seven days. Hospitalization can be necessary for persistent diarrhea. Children under 5, adults over 65 and those with weakened immune systems are more likely to have severe cases.

Consumers with questions about the recall can call the JBS USA consumer hotline at 800-727-2333.

MORE NEWS: Police Officers Denied Service At San Francisco Restaurant Triggering Negative Reviews, Social Media Backlash

© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. This material may not be published, broadcast, rewritten. CNN contributed to this report.