Originally Posted By: nursemike
And these bacteria are stealthy enough to escape detection in routine microscopic urinalysis and routine urine culture.

I'm not sure I would describe them as "stealthy" as I would say that their optimal growing conditions seem to be pretty limited. Which is actually encouraging. Although these scientists debunk the idea that urine is sterile, the bacteria do seem few in number initially (which is partly why people thought urine was sterile) and only grow in certain conditions.