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What are E. coli infections?

Escherichia coli, commonly called E. coli, is a natural resident of your gut. Since its discovery in the late 1880s, this bacterium has been used in microbiological and biotechnological studies due to its ease of handling and its ability to grow in aerobic and anaerobic conditions. It has 7 different pathogenic types, which are responsible for causing various infections such as urinary tract infection (UTI), septicaemia, meningitis and diarrhoea. In India, E. coli infections are commonly seen every year, the most common being diarrhoea and UTI.

What are its main signs and symptoms?

You will experience a broad spectrum of symptoms depending on the type of E. coli infection you have. Based on the kind of infection, the signs and symptoms seen are:

  • Diarrhoea in children and traveller’s diarrhoea: Watery stools (sometimes with mucus) and vomiting.
  • Haemorrhagic colitis: Bloody stools.
  • E. coli infection with Crohn’s disease: Persistent inflammation of the intestine, lesions on intestinal wall and watery stools.
  • UTI: Pain with urination, foul-smelling urine and high fever.
  • Neonatal meningitis: High fever in newborns.

What are the main causes?

The main cause of infections is the contamination of food and water caused by the pathogenic E. coli. Although E. coli may be a friendly bacterium inside the gut, its pathogenic strains can create havoc in the human body. These can produce infections even in healthy humans and can be spread by:

  • Drinking contaminated water
  • Eating contaminated food
  • Consuming vegetables grown in E. coli-contaminated soil
  • Unhygienic eating habits
  • Hospital effluents contaminated with E. coli

How is it diagnosed and treated?

Diagnosis of different E. coli infections will mainly involve testing for the presence of bacteria or its toxins in the specimen. Depending on the infection, the diagnostic tests conducted are:

  • UTI: Urine examination and urine culture.
  • Diarrhoea: Testing of stool specimen.
  • Neonatal meningitis: Cerebrospinal fluid (CSF) examination and culture.
  • Crohn’s disease: Conventional radiology to study lesions in the intestine and differentiate them from ulcerative colitis, along with stool examination to confirm the presence of E. coli.

With multidrug-resistant species of E. coli around, the treatment can be challenging. The treatment of E. coli infections includes:

  • Rational use of antibiotics
  • Probiotics
  • Bacteriophage therapy
  • Antimicrobial peptides

In addition to medication, some self-care measures like drinking plenty of water and taking rest can be helpful.

Preventive measures include proper hygiene, safe food practices and good sanitation.

  1. Medicines for E. coli Infection
  2. Doctors for E. coli Infection
Dr. Neha Gupta

Dr. Neha Gupta

संक्रामक रोग

Dr. Jogya Bori

Dr. Jogya Bori

संक्रामक रोग

Dr. Lalit Shishara

Dr. Lalit Shishara

संक्रामक रोग

Medicines for E. coli Infection

Medicines listed below are available for E. coli Infection. Please note that you should not take any medicines without doctor consultation. Taking any medicine without doctor's consultation can cause serious problems.

Medicine NamePack SizePrice (Rs.)
Exel GnExel Gn 0.05% W/W/0.5% W/W Cream41
Canflo BnCanflo Bn 1%/0.05%/0.5% Cream34
Tenovate GnTenovate Gn Cream24
Crota NCrota N Cream27
Sigmaderm NSigmaderm N 0.025%/1%/0.5% Cream45
Tolnacomb RfTolnacomb Rf Cream23
Xeva NcXeva Nc Tablet23
ZotadermZotaderm Cream21
MegaspanMegaspan Cream17
ClostagenClostagen 0.5%/0.5% Cream84
Dipgenta FDipgenta F Cream64
Klosoft NKlosoft N 0.05%/0.5% Cream0
Clonit GClonit G Cream0
Cortisol GCortisol G Cream0
Powercort NPowercort N Cream32

Do you or anyone in your family have this disease? Please do a survey and help others


  1. Zachary D Blount. e Life. 2015; 4: e05826. Published online 2015 Mar 25. doi: [10.7554/eLife.05826]
  2. Nerino Allocati et al Escherichia coli in Europe: An Overview. Int J Environ Res Public Health. 2013 Dec; 10(12): 6235–6254.
  3. V.Niranjan and A.Malini. Antimicrobial resistance pattern in Escherichia coli causing urinary tract infection among inpatients.. Indian J Med Res. 2014 Jun; 139(6): 945–948
  4. Center for Disease Control and Prevention [internet], Atlanta (GA): US Department of Health and Human Services; E. coli (Escherichia coli).
  5. Center for Disease Control and Prevention [internet], Atlanta (GA): US Department of Health and Human Services; E. coli (Escherichia coli)
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