Abstract: A heterologous expression cassette, DNA construct and vaccine composition for immunization against flavivirus and/or other pathogens. DNA constructs, recombinant viruses and vaccine compositions containing the recombinant viruses were obtained. This invention also concerns and provide an improved expression vector of the live-attenuated yellow fever 17D virus. Modifications in the expression cassette of heterologous proteins in the intergenic E/NS1 region of the yellow fever 17D vaccine virus, were made. The two new functional domains inserted in the expression cassette were (1) a coding sequence for the N-glycosylation motif, located between the NS1 N-terminal motif and the heterologous protein and (2) a sequence which promoted the proteolytic cleavage, or not, of the recombinant protein in such a way as to release it from its C-terminal containing the transmembrane domains and, consequently, from its association with the membrane of the endoplasmatic reticulum—ER.

Abstract: A heterologous expression cassette, DNA construct and vaccine composition for immunization against flavivirus and/or other pathogens. DNA constructs, recombinant viruses and vaccine compositions containing the recombinant viruses were obtained. This invention also concerns and provide an improved expression vector of the live-attenuated yellow fever 17D virus. Modifications in the expression cassette of heterologous proteins in the intergenic E/NS1 region of the yellow fever 17D vaccine virus, were made. The two new functional domains inserted in the expression cassette were (1) a coding sequence for the N-glycosylation motif, located between the NS1 N-terminal motif and the heterologous protein and (2) a sequence which promoted the proteolytic cleavage, or not, of the recombinant protein in such a way as to release it from its C-terminal containing the transmembrane domains and, consequently, from its association with the membrane of the endoplasmatic reticulum—ER.

Abstract: The purpose of the present invention is the production of recombinant virus through the cloning and expression of sequences of nucleotides encoding whole or part of heterologous proteins, through the following method: (a) modification of the heterologous nucleotides sequences in such way that when cloned and expressed in a vector virus, the 5? region nucleotides present in the 5? edge of the gene NS1 of this vector virus or of other virus or equivalent functional sequences, and in its 3? region, the correspondent genome region in the whole or part of the domains of the stem and anchor of the protein E of the vector virus or equivalent functional sequences, and not comprising the structure and the replication of the mentioned vector virus; (b) insertion of the modified heterologous sequences in (a) in the intergenic region at the structural protein E level and of the nonstructural NS1 vector virus; (c) obtaining the non pathogenic recombinant virus with immunologic properties, having the heterologous sequences

Abstract: The purpose of the present invention is the production of recombinant virus through the cloning and expression of sequences of coding nucleotides of the whole or part of heterolog proteins, through the following method: (a) modification of the heterolog nucleotides sequences in such way they when cloned and expressed in the vector virus, the present in the 5? region nucleotides present in the 5? edge of the gene NS1 of this vector virus or of other virus or equivalent functional sequences, and in its 3? region, the correspondent genome region in the whole or part of the spheres of the steam and anchor of the protein E of this vector virus or equivalent functional sequences, and not comprising the structure and the replication of the mention vector virus; (b) insertion of the modified heterolog sequences in (a) in the intergene region at the structural protein E level and of constructural NS1 vector virus; (c) obtention of the non pathogenic recombinant virus and owner of the immunologic properties, having the

Abstract: The purpose of the present invention is the production of recombinant virus through the cloning and expression of sequences of coding nucleotides of the whole or part of heterolog proteins, through the following method: (a) modification of the heterolog nucleotides sequences in such way they when cloned and expressed in the vector virus, the present in the 5? region nucleotides present in the 5? edge of the gene NS1 of this vector virus or of other virus or equivalent functional sequences, and in its 3? region, the correspondent genome region in the whole or part of the spheres of the steam and anchor of the protein E of this vector virus or equivalent functional sequences, and not comprising the structure and the replication of the mention vector virus; (b) insertion of the modified heterolog sequences in (a) in the intergene region at the structural protein E level and of constructural NS1 vector virus; (c) obtention of the non pathogenic recombinant virus and owner of the immunologic properties, having the

Abstract: The purpose of the present invention is the production of recombinant virus through the cloning and expression of sequences of coding nucleotides of the whole or part of heterolog proteins, through the following method: (a) modification of the heterolog nucleotides sequences in such way that when cloned and expressed in the vector virus, they present in the 5? region nucleotides present in the 5? edge of the gene NS1 of this vector virus or of other virus or equivalent functional sequences, and in its 3? region, the correspondent genome region in the whole or part of the spheres of the stem and anchor of the protein E of this vector virus or equivalent functional sequences, and not comprising the structure and the replication of the mention vector virus; (b) insertion of the modified heterolog sequences in (a) in the intergene region at the structural protein E level and of nonstructural NS1 vector virus; (c) obtaining the non-pathogenic recombinant virus and owner of the immunologic properties, having the he

Abstract: The purpose of the present invention is the production of recombinant virus through the cloning and expression of sequences of coding nucleotides of the whole or part of heterolog proteins, through the following method: (a) modification of the heterolog nucleotides sequences in such way they when cloned and expressed in the vector virus, the present in the 5? region nucleotides present in the 5? edge of the gene NS1 of this vector virus or of other virus or equivalent functional sequences, and in its 3? region, the correspondent genome region in the whole or part of the spheres of the steam and anchor of the protein E of this vector virus or equivalent functional sequences, and not comprising the structure and the replication of the mention vector virus; (b) insertion of the modified heterolog sequences in (a) in the intergene region at the structural protein E level and of nonstructural NS1 vector virus; (c) obtention of the non pathogenic recombinant virus and owner of the immunologic properties, having the

Abstract: The purpose of the present invention is the production of recombinant virus through the cloning and expression of sequences of coding nucleotides of the whole or part of heterolog proteins, through the following method: (a) modification of the heterolog nucleotides sequences in such way they when cloned and expressed in the vector virus, the present in the 5? region nucleotides present in the 5? edge of the gene NS1 of this vector virus or of other virus or equivalent functional sequences, and in its 3? region, the correspondent genome region in the whole or part of the spheres of the steam and anchor of the protein E of this vector virus or equivalent functional sequences, and not comprising the structure and the replication of the mention vector virus; (b) insertion of the modified heterolog sequences in (a) in the intergene region at the structural protein E level and of nonstructural NS1 vector virus; (c) obtention of the non pathogenic recombinant virus and owner of the immunologic properties, having the

Abstract: The purpose of the present invention is the production of recombinant virus through the cloning and expression of sequences of coding nucleotides of the whole or part of heterolog proteins, through the following method: (a) modification of the heterolog nucleotides sequences in such way they when cloned and expressed in the vector virus, they present in the 5? region, nucleotides present in the 5? edge of the gene NS1 of this vector virus or of other virus or equivalent functional sequences, and in its 3? region, the correspondent genome region in the whole or part of the spheres of the steam and anchor of the protein E of this vector virus or equivalent functional sequences, and not compromising the structure and the replication of the mention vector virus; (b) insertion of the modified heterolog sequences in (a) in the intergene region at the structural protein E level and of on structural NS1 vector virus; (c) obtention of the non pathogenic recombinant virus and owner of the immunologic properties, having

Abstract: The present invention relates to an attenuated, recombinant viral vaccine against yellow fever which expresses heterologous sequences of a lentivirus and is used as an immunisation agent to induce an immune response to lentivirus.

Abstract: The purpose of the present invention is the production of recombinant virus through the cloning and expression of sequences of coding nucleotides of the whole or part of heterolog proteins, through the following method: (a) modification of the heterolog nucleotides sequences in such way they when cloned and expressed in the vector virus, they present in the 5? region, nucleotides present in the 5? edge of the gene NS1 of this vector virus or of other virus or equivalent functional sequences, and in its 3? region, the correspondent genome region in the whole or part of the spheres of the steam and anchor of the protein E of this vector virus or equivalent functional sequences, and not compromising the structure and the replication of the mention vector virus; (b) insertion of the modified heterolog sequences in (a) in the intergene region at the structural protein E level and of on structural NS1 vector virus; (c) obtention of the non pathogenic recombinant virus and owner of the immunologic properties, having