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.
Appointments & care. At Mayo Clinic, we take the time to listen, to find answers and to provide you the best care. Acquired immunodeficiency syndrome (AIDS) is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus (HIV).By damaging your immune system, HIV interferes with your body's ability to fight the organisms that cause disease. HIV is a sexually transmitted infection.cquired immunodeficiency syndrome (AIDS) is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus (HIV).