100 years of E. coli strain Nissle 1917
Escherichia coli (E. coli) is a common bacteria found in the the lower intestine of warm-blooded animals, including humans. Whilst most strains are harmless, some can cause serious gastroenteritis, or food poisoning. However, one special strain, E. coli strain Nissle 1917 (EcN), is specifically used to prevent digestive disruption. Since its discovery 100 years ago, EcN is probably the most intensely investigated bacterial strain today.