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.
Most Common Opportunistic Infections. When a person living with HIV gets certain infections (called opportunistic infections, or OIs), he or she will get a diagnosis of AIDS, the most serious stage of HIV infection. AIDS is also diagnosed if a type of blood cell that fights infection (known as CD4 cells) falls below a certain level in persons with HIV.