Abstract: An immunoglobulin (Ig) preparation containing polyclonal IgG-reactive antibodies (Abs), methods for preparing said preparation and pharmaceutical compositions containing it in admixture with suitable excipients, the use of said preparation or composition, alone or in combination with antiretroviral drugs, for the prophylaxis or treatment of HIV-1 infection.

Abstract: A preparation of human antibodies capable of neutralizing HIV-1 virus and the use thereof in the treatment of HIV infection.

Abstract: This invention relates to peptide sequences which react with human antibodies whose titer in sera of individuals infected with Human Immunodeficiency Virus type 1 (HIV-1) correlates with Acquired Immune Deficiency Syndrome (AIDS) progression. Hence, these peptides are useful in preparing test kits for the prognostic evaluation of the disease progression, as well as for monitoring the effect of the antiviral therapy on HIV-1 infectivity and modulate immune network. These peptides are also useful in vaccines to prevent the development of AIDS. Monoclonal antibodies against the peptides from this invention may also be used as a therapeutic agent to prevent AIDS progression.