Cousin(noun) one collaterally related more remotely than a brother or sister; especially, the son or daughter of an uncle or aunt. Cousin(noun) a title formerly given by a king to a nobleman, particularly to those of the council. In English writs, etc., issued by the crown, it signifies any earl.
Since reports of the human immunodeficiency virus (HIV) virus began to emerge in the United States in the 1980s, the HIV epidemic has frequently been linked to gay, bisexual, and other men who have sex with men (MSM) by epidemiologists and medical professionals.en who have sex with men (abbreviated as MSM, also known as males who have sex with males) are male persons who engage in sexual activity with members of the same sex, regardless of how they personally identify themselves.
HIV itself is the pathogen that causes AIDS. HIV (human immunodeficiency virus) is the name of the pathogen.IV/AIDS is caused by a virus HIV is a virus. that's what the V stands for. and after a while HIV develops in to AIDS. The definition of pathogen is bacteria or virus that causes disease. So HIV is the virus that causes AIDS disease. Hope I helped :).