HIV virus helper-T-cell

Category B - full version without watermark 720x576 (check terms and conditions at www.teledesign.de) The version with watermark is for free to embed Text: HIV is a relatively complex virus that is able to infect helper T cells. When HIV attempts to enter a cell, interactions between cell surface molecules and viral envelope proteins allow the envelope to fuse with the cell membrane. In an infected cell, HIV undergoes reverse transcription, producing double-stranded DNA from its RNA Once in DNA form, the genetic information of HIV can stay in certain circumstances inactive for years..