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Severe E. coli O104 Infections: Causes and Risks

August 17 / 2026

e.coli O104

 

 

     E. coli O 104 which causes diarrhea consists of 6 strains. The strain mentioned in the news belongs to a dangerous category. This bacteria is commonly found in raw vegetables, beans, and bean sprouts. Once infected, patients display symptoms similar to food poisoning or diarrhea, such as watery stools, low-grade fever, nausea, and vomiting, most of which resolve on their own.

 

Some Patients May Experience Severe Symptoms

     Approximately 10% of patients develop more severe symptoms, such as bloody or mucus-filled stools and anemia, while 3-5% face life-threatening risks including acute kidney failure and red blood cell destruction (hemolysis).

 

Initial Symptom Observation

     We can distinguish between these 2 conditions through basic observation, such as diarrhea lasting more than 3 days without improvement, non-stop loose bowel movements, or stools containing mucus and blood.

 

How to Identify High-Risk Groups for E. coli Infection

  • Have you consumed high-risk foods, such as raw bean sprouts or fresh vegetables?
  • Have you been in close contact with infected patients or travelers returning from outbreak regions?

 

 

If you meet the two criteria above, you should see a doctor immediately for a detailed physical examination.

 

 

Frequently Asked Questions

Q: Treatment for E. coli O 104 Infection

A: The treatment for patients infected with E. coli O 104 follows the same method as treating general diarrhea or food poisoning. Physicians will treat symptomatic manifestations but will avoid anti-diarrheal medications, as they can cause bacteria to remain trapped inside the body. If antibiotics are necessary, they must be administered under strict medical supervision.

 

Q: How to Prevent E. coli O 104 Infection

A: The best prevention method is to adhere to the Ministry of Public Health's campaign: Eat hot food, use serving spoons, and wash hands. Following these guidelines will help protect you from infection.

 

  • Only consume freshly cooked food, or food heated to at least 70 degrees Celsius to effectively kill the bacteria.
  • Avoid consuming raw vegetables, especially beans and bean sprouts.
  • Maintain good overall health, as infections are more likely to occur when immunity is low.

 

 

E. coli

 

 

Ramkhamhaeng Hospital is Ready to Stand by You During Illness

     Currently, the Ministry of Public Health is collaborating with hospitals to implement preventive and surveillance measures for E. coli O 104 to prevent outbreaks in Thailand. Meanwhile, Ramkhamhaeng Hospital strictly complies with these official guidelines by closely monitoring and thoroughly screening patients. Therefore, we can be confident that E. coli O 104 is unlikely to spread widely. In fact, the disease is not severe if properly treated under medical care.

 

Emphasize eating freshly cooked food. If you experience symptoms such as diarrhea or watery stools, seek medical advice and a thorough diagnosis immediately.

 


Prof. Dr. Narin Hiransuthikul
Infectious Disease Consultant, Ramkhamhaeng Hospital