Health officials in San Luis Obispo County, California, are investigating a possible E. coli outbreak linked to Brookshire Farms after five people tested positive for Shiga toxin-producing E. coli (STEC). Three children are reportedly in serious condition and receiving treatment in a pediatric intensive care unit.
The county confirmed the infections on October 27, 2026, and identified visits to the farm as a common link among the patients. The suspected exposure period runs from October 16 through October 26, although investigators have not yet confirmed the exact source of the infections.
Brookshire Farms, a seasonal attraction known for its pumpkin patch, corn maze and family activities, has voluntarily closed while the public health investigation continues.
Brookshire Farms E. Coli Investigation: What Officials Know
The five confirmed cases involve two adults and three children. County officials have linked the patients through their visits to Brookshire Farms, but they have not established whether a specific activity, contaminated surface, food item or other exposure caused the infections.
According to food safety attorney Bill Marler, his firm, Marler Clark, has been retained by the family of a hospitalized woman who developed a Shiga toxin-producing E. coli infection after visiting the farm. The attorney said the family wants to determine what caused her illness.
The investigation is ongoing, and officials have not publicly confirmed the specific bacterial strain or whether laboratory testing has established a common source for all five cases.
Why Three Children in Intensive Care Raise HUS Concerns
Shiga toxin-producing E. coli can cause severe gastrointestinal illness and, in some cases, lead to a potentially life-threatening complication called hemolytic uremic syndrome (HUS). The condition damages small blood vessels, destroys red blood cells and platelets, and can cause acute kidney injury.
The seriousness of the reported illnesses has raised concerns about possible HUS. However, health officials have not confirmed that any of the three children has been diagnosed with the condition. Intensive care treatment alone does not establish an HUS diagnosis.
Children, particularly those under 10, face an increased risk of complications from certain E. coli infections. HUS may develop after diarrhea begins, sometimes when gastrointestinal symptoms appear to be improving.
Warning signs can include reduced urination, unusual tiredness, pale skin and unexplained bruising. Anyone experiencing these symptoms after a possible E. coli exposure should seek urgent medical evaluation.
Symptoms to Watch for After Visiting Brookshire Farms
San Luis Obispo County public health officials are urging people who visited the farm between October 16 and October 26 to contact a healthcare provider if they develop symptoms consistent with an E. coli infection.
Symptoms can include severe abdominal cramps, diarrhea, bloody stools, vomiting and, in some cases, fever. They commonly appear within several days of exposure, although the time between exposure and illness can vary.
People seeking medical care should tell their healthcare provider about their visit to Brookshire Farms and when symptoms began. Bloody diarrhea, severe abdominal pain, signs of dehydration or reduced urination warrant prompt medical attention.
The Centers for Disease Control and Prevention (CDC) advises people with suspected E. coli infections to seek medical guidance. Treatment decisions should be made by healthcare professionals, particularly because some interventions, including antibiotics and anti-diarrheal medicines, may be inappropriate for certain STEC infections.
Brookshire Farms Closes as Health Investigation Continues
Brookshire Farms is cooperating with public health officials and has temporarily closed while investigators work to identify the source of the infections and determine whether additional people may have been exposed.
The farm offers seasonal attractions, including a pumpkin patch, corn maze and other outdoor activities. Investigators have not identified a particular attraction or activity as the confirmed source of the illnesses.
E. coli can spread through contaminated food or water, contact with infected animals, or contaminated environments and surfaces. Investigators must determine which, if any, of these routes contributed to the cases under review.
Officials are gathering information about visitors’ activities and potential exposures. People contacted by public health investigators are being asked to cooperate to help establish whether the cases are connected and identify the source.
What Is Still Unknown About the Brookshire Farms Outbreak?
Several important questions remain unanswered. Public health officials have not identified the precise source of the infections, publicly confirmed the bacterial subtype or established whether the patients’ infections are genetically linked.
The status of HUS diagnoses among the three children has also not been publicly confirmed. Although the condition is a recognized complication of STEC infections, its presence cannot be established from hospitalization details alone.
Investigators are continuing to assess potential exposures and the risk to other visitors. Anyone who visited the farm during the suspected exposure period and develops concerning gastrointestinal symptoms should contact a healthcare provider and mention the visit.
