Escherichia coli Nissle 1917

Escherichia coli Nissle 1917 is a strain of Escherichia coli that was isolated from the feces of a German soldier in 1917 by the German researcher Alfred Nissle. Since that time it has been widely studied as a probiotic and several marketed probiotics include it and naturally colonizes the human intestines and has positive probiotic properties.^[1] Only 50 to 80% of patients who take it daily have detectable amounts in their feces. The precise reason is unknown. It is known that the F1C fimbriae are important for colonization.^[2]

Escherichia coli strain Nissle 1917
Scientific classification
Domain:	Bacteria
Kingdom:	Pseudomonadati
Phylum:	Pseudomonadota
Class:	Gammaproteobacteria
Order:	Enterobacterales
Family:	Enterobacteriaceae
Genus:	Escherichia
Species:	E. coli
Strain:	E. c. strain Nissle 1917
Trionomial name
Escherichia coli strain Nissle 1917