This invention discloses recombinant vectors and live attenuated pathogens produced by these vectors which are useful as vaccines and therapeutic agents. Particularly disclosed are live attenuated recombinant viruses that remain at very low virus loads, and preferably do not persist in the infected hosts. These recombinant viruses are useful against retroviruses such as human immunodeficiency virus and against acquired immunodeficiency diseases. In the recombinant vectors and pathogens, one or more genes, or part of the gene(s), responsible for pathogenesis have been completely or partially rendered nonfunctional, e.g., by full or partial deletion or mutagenesis. Further, the recombinant vectors and pathogens contain one or more genes encoding cytokine(s) and/or lymphokine(s).

Questa invenzione rileva i vettori recombinant e vive agenti patogeni attenuati prodotti da questi vettori che sono utili come i vaccini ed agenti terapeutici. Sono rilevati specialmente i virus recombinant attenuati in tensione che rimangono ai carichi molto bassi del virus e preferibilmente non non persist negli ospiti infettati. Questi virus recombinant sono utili contro i retroviruses quale il virus umano di immunodeficiency e contro le malattie acquistate di immunodeficiency. Nei vettori e gli agenti patogeni recombinant, uno o più geni, o la parte del gene(s), responsabile della patogenesi sono stati completamente o parzialmente reso non funzionale, per esempio, vicino in pieno o omissione o mutagenesi parziale. Ulteriormente, i vettori e gli agenti patogeni recombinant contengono uno o più geni che mettono il cytokine(s) e/o il lymphokine(s) in codice.

 
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