What virus is known to cause AIDS?

The virus that is known to cause AIDS is the Human Immunodeficiency Virus, commonly referred to as HIV. HIV attacks the body's immune system, specifically targeting CD4 cells (T cells), which are crucial for maintaining a healthy immune response. As the virus replicates, it gradually weakens the immune system, leading to the condition known as Acquired Immunodeficiency Syndrome (AIDS).

Understanding the mechanisms and effects of HIV is essential for recognizing how the virus progresses to AIDS and why it's critical to diagnose and treat HIV infections early. Treatment can significantly improve the quality of life for individuals living with HIV and can reduce the risk of developing AIDS by maintaining the immune system's strength.