Most UTIs are caused by bacteria that enter the urethra and then the bladder. The infection most commonly develops in the bladder, but can spread to the kidneys. Most of the time, your body can get rid of these bacteria. However, certain conditions increase the risk of having UTIs.
Nubia - an ancient region of northeastern Africa (southern Egypt and northern Sudan) on the Nile; much of Nubia is now under Lake Nasser Africa - the second largest continent; located to the south of Europe and bordered to the west by the South Atlantic and to the east by the Indian Ocean
Most likely it refers to two separate groups: the Nuba, a people from southeast of Nubia, and a people later known as the Nobatae, a group of unknown origin who invaded Nubia during the decline of Meroe and most likely founded the kingdom of Nobatia and gave their name to Nubia itself. Lobban, Richard. Noba..