Engelhaupt sciencenews.org/blog/gory-details/… Urine is not sterile urine 1950s research on urinary tract infections I didn't know the rest of the story, though definitely not sterile I didn't know the rest of the story, though Urine is not sterile research has shown Urine is not sterile urine is not sterile NOT STERILE sciencenews.org/blog/gory-details/… l'urine n'est pas aussi stérile Urine is NOT sterile