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.
Recommend on Facebook Tweet ShareCompartir. HIV is a virus spread through body fluids that affects specific cells of the immune system, called CD4 cells, or T cells. Over time, HIV can destroy so many of these cells that the body canât fight off infections and disease. When this happens, HIV infection leads to AIDS.efore the introduction of ART in the mid-1990s, people with HIV could progress to AIDS in just a few years. Today, someone diagnosed with HIV and treated before the disease is far advanced can have a nearly normal life expectancy. HIV affects specific cells of the immune system, called CD4 cells, or T cells.