AP BIOLOGY

Detailed explanation-1: -You can have an HIV infection, with few or no symptoms, for years before it turns into AIDS . AIDS is diagnosed when the CD4 T cell count falls below 200 or you have an AIDS-defining complication, such as a serious infection or cancer.

Detailed explanation-2: -Most people experience a short flu-like illness 2 to 6 weeks after HIV infection, which lasts for a week or 2. After these symptoms disappear, HIV may not cause any symptoms for many years, although the virus continues to damage your immune system. This means many people with HIV do not know they’re infected.

Detailed explanation-3: -HIV binds to the CD4 molecule on the surface of helper T-cells and replicates within them. This results in destruction of CD4+ T-cells and leads to a steady decline in this population of T-cells.

Detailed explanation-4: -You may not have any symptoms at all for up to 10 years. At that point, HIV begins to make it hard for your body to fight off infections, so you can get infections that normally wouldn’t affect you. When your immune system reaches a certain point of weakness, that’s when HIV becomes AIDs.

Detailed explanation-5: -After the initial symptoms disappear, HIV may not cause any further symptoms for many years. During this time, the virus continues to be active and causes progressive damage to your immune system. This process can vary from person to person, but may take up to 10 years, during which you’ll feel and appear well.