Public health officials are investigating a multistate outbreak of Shiga toxin-producing E. coli and Salmonella infections linked to alfalfa sprouts distributed by Everything Sprouts, LLC of Minneapolis, Minnesota. A total of 55 people across 15 states have fallen ill, with symptom onset dates ranging from May 31, 2026, to August 8, 2026, according to data from the Centers for Disease Control and Prevention and the U.S. Food and Drug Administration.
Understanding the Pathogens and Epidemiological Findings
The current outbreak involves multiple distinct bacterial strains. According to federal health investigations, 46 individuals were infected with Shiga toxin-producing E. coli (STEC) spanning serotypes O26:H11, O103:H25, and O168:H8. Additionally, 7 people contracted Salmonella Agona, while 2 patients were co-infected with both pathogens. Of the 34 individuals interviewed by state and local public health officials regarding their dietary histories in the week prior to symptom onset, 26—representing 76% of respondents—reported consuming alfalfa sprouts.
Traceback data collected from grocery stores and restaurants pointed directly to Everything Sprouts, LLC as a source of illness in this outbreak. On August 19, 2026, the U.S. Food and Drug Administration (FDA) initiated an inspection of the facility. The contaminated items were sold directly to foodservice customers and retailers under two distinct brand names: Calco and Everything Sprouts.
In Plain English: The Clinical Takeaway
- The Source: Alfalfa sprouts distributed by Everything Sprouts, LLC under the Calco and Everything Sprouts brand names are the identified vector for this multistate bacterial outbreak.
- The Pathogens: Patients have been sickened by multiple strains of Shiga toxin-producing E. coli (STEC) and Salmonella Agona, both of which can cause severe gastrointestinal distress.
- The Action: Check refrigerators and freezers immediately. Discard any recalled sprouts or return them to the place of purchase, and sanitize all surfaces that came into contact with the product.
Clinical Manifestations and Complications of STEC and Salmonella
Pathogenic bacterial infections present distinct clinical timelines and symptom profiles depending on the causative organism. For Shiga toxin-producing E. coli, symptoms typically manifest anywhere from a few days to nine days following ingestion. Clinical presentations include severe stomach cramps, diarrhea, fever, nausea, and vomiting. In severe cases, STEC infections can progress to hemolytic uremic syndrome (HUS), a life-threatening form of acute kidney failure that may also result in high blood pressure, chronic kidney disease, and neurologic problems.
Conversely, Salmonella infections generally have a shorter incubation period, with symptoms manifesting within 12 to 72 hours after consuming contaminated food. The resulting illness typically lasts four to seven days and is characterized by diarrhea, fever, and abdominal cramps. Children younger than five, the elderly, and people with weakened immune systems are more likely to have severe infections.
| Pathogen | Incubation Period | Primary Symptoms | Severe Potential Complications |
|---|---|---|---|
| Shiga toxin-producing E. coli (STEC) | A few days to 9 days | Severe stomach cramps, diarrhea, fever, nausea, vomiting | Hemolytic uremic syndrome (HUS), kidney failure, high blood pressure, chronic kidney disease, neurologic problems |
| Salmonella Agona | 12 to 72 hours | Diarrhea, fever, abdominal cramps | Severe infections in children, the elderly, and those with weakened immune systems |
Contraindications & When to Consult a Doctor
Consult a healthcare provider immediately if you ate Calco and/or Everything Sprouts-brand alfalfa sprouts and have any symptoms that resemble an STEC or Salmonella infection. If you operate a restaurant or retail business that received these products, remove them from the market, halt all sales, and thoroughly sanitize equipment and storage bins to prevent cross-contamination.
References
- Centers for Disease Control and Prevention (CDC). Multistate Outbreak of E. coli and Salmonella Infections Linked to Alfalfa Sprouts. August 2026.
- U.S. Food and Drug Administration (FDA). Outbreak Investigation of Shiga Toxin-producing E. coli and Salmonella in Sprouts. August 2026.
Disclaimer: This article is intended for informational and educational purposes only and does not substitute for professional medical evaluation, diagnosis, or treatment.
