HIV

HIV- Or human immunodeficiency virus is a type of virus that is responsible for the fatal illness acquired immunodeficiency syndrome.

Two strains have been identified.

Type 1: the retrovirus recognized as the agent that induces AIDS.

Type 2: a virus closely related to HIV-1 that also leads to immune suppression. HIV-2 is not as virulent as HIV-1 and is epidemic only in West Africa.