HIV-1 and HIV-2 are two types of human immunodeficiency viruses (HIV) that cause acquired immunodeficiency syndrome (AIDS), a chronic and potentially life-threatening condition. Here’s some information about HIV-1 and HIV-2:
- HIV-1: HIV-1 is the most common and widespread type of HIV worldwide. It is responsible for the majority of HIV infections globally and is more easily transmitted from person to person. HIV-1 is further divided into subtypes, known as clades, which are found in different regions of the world.
- HIV-2: HIV-2 is less common than HIV-1 and is primarily found in West Africa and some parts of Central Africa. It is less easily transmitted than HIV-1 and generally progresses more slowly to AIDS. HIV-2 is also divided into different subtypes.
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