Human Immunodeficiency Virus (HIV)

Categories: Health & Hygiene

Human Immunodeficiency Virus (HIV)


This highly magnified transmission electron micrographic (TEM) image revealed the presence of mature forms of the human immunodeficiency virus (HIV) in a tissue sample under investigation.

The Human Immunodeficiency Virus (HIV), a retrovirus, was identified in 1983 as the etiologic agent for the Acquired Immunodeficiency Syndrome (AIDS). AIDS is characterized by changes in the population of T-cell lymphocytes that play a key role in the immune defense system. In the infected individual, the virus causes a depletion of subpopulation of T-cells, called T-helper cells, which leaves these patients susceptible to opportunistic infections, as well as certain malignancies.

Source: CDC


Human Immunodeficiency Virus (HIV) :  Created on September 9th, 2007.  Last Modified on November 4th, 2009


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