Definitions and examples are as follows: IT Service A service that is directly consumed by the end user to do their work and is something they ask for and recognize. It has the additional characteristics: You don't use this service to consume or procure another service (as you do with CAS or networking, e.g.). If you provide this service alone to the end user, they would be happy to use it on its own.
Serious symptoms that might indicate a life-threatening condition. In some cases, scabies can lead to serious complications from secondary bacterial infections and poststreptococcal glomerulonephritis, which is inflammation of the kidneys.
At its extreme Lupus is a life threatening auto-immune disease; however, in most cases, people with Lupus lead normal lives despite having this dangerous disease. What is Lupus? I was very happy to see that Hubpages actually has a separate category for Lupus; Lupus is an auto-immune disease that can be life-threatening.