1 An example of decisive is a person who always makes up her mind firmly and quickly. 2  An example of decisive is the information gained from a student's success in the classes which they take to determine their interest in their major field of study.
The Global HIV/AIDS Epidemic. HIV, the virus that causes AIDS, is one of the worldâs most serious health and development challenges: 1  According to the World Health Organization (WHO) , 2  According to WHO, 3  A UNAIDS report shows that 19 million of the 35 million people living with HIV today do not know that they have the virus.
AIDS is a disease that can damage any of the body's major organ systems because HIV destroys immune system cells. HIV attacks the body through three disease processes: immunodeficiency, autoimmunity, and nervous system dysfunction.cquired immune deficiency syndrome (AIDS) is an infectious disease caused by the human immunodeficiency virus (HIV). There are two variants of the HIV virus, HIV-1 and HIV-2, both of which ultimately cause AIDS.