HIV stands for Human Immunodeficiency Virus.
Many people also refer to HIV as the AIDS virus.
AIDS stands for Acquired ImmunoDeficiency Syndrome.
The immune system of persons with AIDS becomes very weak and cannot fight infections anymore. Therefore they succumb to common diseases.
In other words: HIV is the virus, AIDS is the infection.
In 1986, the first patients werde diagnosed with AIDS.
So far, there doesn't exist any cure for HIV/AIDS.