Outline two types of HIV

Answer 1

1. HIV-1: HIV-1 is the most common and widespread type of HIV, accounting for the majority of HIV infections globally. It is responsible for the majority of AIDS cases worldwide. HIV-1 can be further divided into different subtypes, known as groups (Group M, N, O, and P), with Group M being the most prevalent.

2. HIV-2: HIV-2 is less common than HIV-1 and is mainly found in West Africa. It is less transmissible than HIV-1 and progresses more slowly to AIDS. HIV-2 is typically milder and less aggressive in its progression, but it can still lead to severe immunodeficiency and AIDS.