... new and distinct clinical entity in 1981. Since then it has become a universal epidemic concerning all of mankind.(3) This epidemic is caused by the human immunodeficiency virus, also known as HIV. HIV belongs to the retrovirus family, a family of RNA viruses noted for possession of a viral reverse transcriptase.(2) ... may begin the infection process after sexual exposure by binding to the virus and transporting it to the lymph nodes where other immune system cells become infected. HIV is frequently spread among injection drug users by the sharing of needles or syringes contaminated wit...

• Word Count: 1538
• Approx Pages: 6
• Grade Level: High School