What is the difference between HIV and AIDS?

HIV (Human Immunodeficiency Virus) and AIDS (Acquired Immunodeficiency Syndrome) are related, but they represent different stages of the same disease process:

1. HIV (Human Immunodeficiency Virus):
   - HIV is the virus that causes the infection. Once a person becomes infected with HIV, the virus attacks and gradually weakens the immune system by destroying CD4 cells (T cells), which are crucial for the immune system's proper functioning. HIV is a lifelong infection, and with proper medical care, the progression of the disease can be controlled.

2. AIDS (Acquired Immunodeficiency Syndrome):
   - AIDS is the advanced stage of HIV infection. It is diagnosed when the immune system becomes severely damaged, and the CD4 cell count falls below a certain threshold, or when certain opportunistic infections or cancers occur. AIDS is characterized by a significant loss of immune function, making the individual more susceptible to a range of serious illnesses. Without treatment, HIV infection can progress to AIDS, but with effective medical care, the progression to AIDS can be delayed or prevented.

In summary, HIV is the virus that causes the infection, and AIDS is the later stage of the disease when the immune system is significantly compromised. Not everyone who has HIV will develop AIDS, especially if they receive appropriate medical care and treatment to control the progression of the virus. Early detection and management of HIV through antiretroviral therapy (ART) play a crucial role in preventing the advancement to AIDS and maintaining a person's overall health.