The intrinsic layer of the PIN diode is a layer without doping, and as a result this increases the size of the depletion region - the region between the P and N layers where there are no majority carriers. This change in the structure gives the PIN diode its unique properties.
Be aware of possible complications. By weakening your immune system, HIV can leave you vulnerable to certain cancers and infections. These infections are called opportunistic because they take the opportunity to attack you when your immune system is weak.
HIV is a virus which is most commonly passed on by sexual contact. HIV attacks cells of the immune system. Untreated, the immune system weakens so that the body cannot defend against various bacteria, viruses and other germs. This is when AIDS (commonly now called late-stage HIV infection) develops. However, early detection and treatment with antiretroviral therapy (ART) means that people living with HIV can lead active, healthy lives. However, they may have side-effects from the treatment.