Primary HIV-1 Infection: A Review of Clinical Manifestations, Immunologic and Virologic Changes

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Abstract
In the past few years, major advances have been made in the field of primary HIV-1 infection. Several studies have reevaluated the clinical syndrome. The emergence of new molecular laboratory techniques has permitted a detailed analysis of viral dynamics and subsequent immunologie changes. Measurements of subsets of T-lymphocytes have allowed greater insight into the early pathogenesis of HIV-1 disease. There is now evidence that HIV-1-specific cytotoxic T-lymphocytes occur early during primary HIV-1 infection and are probably the most important immune defense against HIV-1. However, HIV-1 immune escape mutants have been identified during primary infection, which may be one reason for the failure of the immune system to completely eradicate the virus. Cytokines have been shown to play a role in primary HIV-1 infection, and the therapy of primary infection has gained more interest due to the introduction of potent triple combinations, including protease inhibitors.