Facebook post by University of Helsinki

In spite of advances associated with antibiotics and infection control, an intestinal bacterium has taken root and survived in hospitals since mid-nineteenth century. Old clinical specimens and new technology combined shed a light to the evolution of the Enterococcus faecalis bacterium.
The resilience of a hospital-associated bacterium dates back over a century | University of Helsinki l.facebook.com

Enterococcus faecalis, a pathogen well known for hospital-acquired infections, has adapted to hospital conditions in mid-nineteenth century.