San Luis Obispo County health officials have shuttered Brookshire Farms, a popular destination for

Brookshire Farms Closes Following E. Coli Outbreak Investigation

San Luis Obispo County health officials have shuttered Brookshire Farms, a popular destination for corn mazes and pumpkin patch visits, as they investigate a cluster of Shiga toxin-producing E. coli infections. As of Oct. 28, five cases have been confirmed, including three children who required treatment in pediatric intensive care, according to SFGATE. Two adults were also among the confirmed cases. Eight additional individuals who visited the farm between Oct. 16 and Oct. 26 are currently under investigation, public health officials reported. One other patient was hospitalized but has since been discharged. The San Luis Obispo County Department of Public Health confirmed the infections involve Shiga toxin-producing E. coli, a strain that can lead to severe health complications.

Health Risks of Shiga Toxin-Producing Strains

The specific strain linked to the outbreak, E. coli O157, can trigger symptoms such as severe abdominal pain, vomiting, and bloody diarrhea. Dr. Peter Chin-Hong, an infectious disease specialist at UCSF, noted that this particular bacteria can cause hemolytic uremic syndrome (HUS). This serious condition is marked by low platelet and red blood cell counts, which can lead to kidney damage.

Dr. Christy Mulkerin, the county’s deputy health officer, characterized HUS as a systemic disease that may result in complications like stroke or kidney failure. While most E. coli bacteria are “harmless and are part of a healthy intestinal tract,” the Centers for Disease Control and Prevention said. Shiga-producing strains are highly infectious; Dr. Chin-Hong stated that as few as 10 bacterial organisms can be enough to trigger an infection through contact with contaminated surfaces. Symptoms typically emerge three to four days following exposure, though they can manifest up to 10 days later.

Three Children in ICU as California Pumpkin Patch E. Coli Outbreak Is Investigated

Uncertainty Surrounding the Source of Infection

Despite the ongoing investigation, officials have not yet pinpointed the exact source of the bacterial spread at the Los Osos property. While animal feces at farms and petting zoos are known vectors for the bacteria, the county has not determined how visitors contracted the illness, SFGATE reported.

The farm has remained in cooperation with health department investigators during the inquiry. The outbreak has also prompted broader local impacts, including the cancellation of the City of San Luis Obispo’s annual "Pumpkin Smash" event. Meg Buckingham, the city’s solid waste and recycling program manager, confirmed the decision was made after consulting with county health authorities. She noted that residents can still recycle pumpkins in residential green bins, provided all non-organic decorations are removed.

Monitor Your Health for Symptoms If You Visited the Farm

What should I do if I visited Brookshire Farms recently?
If you visited the farm between Oct. 16 and Oct. 26, you should monitor your health for symptoms such as bloody diarrhea, severe stomach cramps, or dehydration. If symptoms develop, contact a healthcare provider immediately. Individuals who remain asymptomatic do not need to take further action, according to county health officials. Jessica Hochman, a Los Angeles pediatrician, noted she consulted an infectious-disease doctor regarding such risks, stating, “I called my sister’s father-in-law, who is an infectious-disease doctor.”

Why are children more susceptible to severe illness?
Children under the age of 5 are at a higher risk because they frequently touch surfaces and put their hands near their mouths, increasing the likelihood of exposure. According to the FDA, this age group, along with adults over 65 and those with weakened immune systems, is more likely to develop severe complications like HUS.

A microscopic view of E. coli bacteria
Photo: San Luis Obispo Tribune

How does this outbreak compare to other agricultural incidents? This investigation is part of a wider pattern of bacterial outbreaks at seasonal attractions. There have been 156 outbreaks involving animals in public settings in the ten years ending in 2020. Recent incidents include five confirmed cases at Bengtson’s Pumpkin Farm in Illinois, five cases at Brookshire Farms in California, and a cluster of sick children in Dallas County tied to the State Fair of Texas.

Are pumpkins themselves dangerous?
No, health officials have clarified that the pumpkins themselves are not a health concern. The primary risk associated with these environments is the potential for environmental contamination on surfaces, rather than the produce itself.

E. coli outbreak hits SLO County