California officials have recalled and quarantined raw milk from Valley Milk Simply Bottled because tests have shown it to be contaminated with Campylobacter jejuni.

State Veterinarian Dr. Annette Jones announced the recall and quarantine today in a public alert. She warned consumers about the dangers in the alert. There is concern that some people may have unused portions of the unpasteurized milk in their homes.

“Consumers are strongly urged to dispose of any product remaining in their refrigerators that were purchased or received on June 19 through June 30, or any product with a code date marked on the container of July 9 or earlier,” Jones said.

The affected raw milk is distributed in one-gallon plastic jugs under the labels “Valley Milk Simply Bottled Raw Milk” and “DESI MILK Raw Milk.”

The California Department of Food and Agriculture found the campylobacter bacteria in a routine sample of packaged products collected at the Valley Milk Simply Bottled production and packaging facility. No illnesses have been reported to date.

It is against federal law to engage in interstate sales of raw milk, but some states allow the sale of it within their borders. California allows the sale of unpasteurized, raw milk at retail stores, but warning signs must be posted.

Anyone who has consumed any of the recalled raw milk should monitor themselves for symptoms of Campylobacter infection. Children who were served the milk should also be monitored for illness.

Symptoms of campylobacteriosis include diarrhea, abdominal cramps, and fever. The illness usually occurs 2 to 5 days after exposure to campylobacter and lasts about a week. In some people with compromised immune systems, it can cause a serious, life-threatening infection.

A small percentage of people may have joint pain and swelling after infection. Also, a rare disease called Guillain-Barre syndrome that causes weakness and paralysis can occur several weeks after the initial illness.