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Human Retroviruses.

Authors

Cloyd MW.

Editors

In: Baron S1, editor.

Source

Medical Microbiology. 4th edition. Galveston (TX): University of Texas Medical Branch at Galveston; 1996. Chapter 62.

Author information

1
University of Texas Medical Branch at Galveston, Galveston, Texas

Excerpt

Similar to other vertebrate animals, humans possess retroviruses that exist in two forms: as normal genetic elements in their chromosomal DNA (endogenous retroviruses) and as horizontally-transmitted infectious RNA-containing viruses which are transmitted from human-to-human (exogenous retroviruses, e.g. HIV and human T cell leukemia virus, HTLV). Endogenous retroviruses in animals and humans probably evolved from transposable elements, some of them gaining the ability to package themselves in a virion structure, leave the cell and infect another cell.

Copyright © 1996, The University of Texas Medical Branch at Galveston.

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