HIV - Human Immunodeficiency Virus

This HI Virus has different structure from the other retroviruses. It has composed of 2 copies of positive single stranded RNA. This single stranded RNA is tightly bound to Nucleocapsid proteins. This virus has unique life cycle and it binds to the host cells. The virus attaches with cell membrane RNA and Enzymes in the cytoplasm. HIV contain Enzyme called reverse transcriptase and this enzyme allows to single stranded RNA of virus to copied and double stranded DNA to generate.

This HI Virus is mainly to the human immune system and very dangerous virus because it course to the immunity of the human body. HIV is mainly transmission each other with body fluids likes Bloods, Semen, Pre seminal fluids, Vaginal fluids, Brest milk and Rectal mucous. But other body fluids like faces, Nasal fluid, Saliva, Sweat, tears, urine and Vomit are do not help to transmit HI virus.

There are many ways to transmitted blood fluid with each other and If some one infected with HIV they transmitted to each other. Then HIV mainly Transmitted with sexual contact like anal, Oral or virginal sex with partner. If one person infected with HIV it transmitted to other. Then child birth is other way to transmitted HIV. When child is birth of HIV can transmit with mother and child and after birth some time HIV transmitted through the Brest milk. Then it can be transmitted through the inject drugs with each other shearing needles or drugs that are contaminated with the HI virus. Some time HIV can be transmitted with the bloods transmitted to patios.