Abstract: Compounds, methods and pharmaceutical compositions for treating viral infections, by administering certain novel semicarbazides, sulfonyl carbazides, ureas and related compounds in therapeutically effective amounts are disclosed. Methods for preparing the compounds and methods of using the compounds and pharmaceutical compositions thereof are also disclosed. In particular, the treatment and prophylaxis of viral infections such as caused by hemorrhagic fever viruses is disclosed, i.e., including but not limited to Arenaviridae (Junin, Machupo, Guanavito, Sabia and Lassa), Filoviridae (ebola and Marburg viruses), Flaviviridae (yellow fever, omsk hemorrhagic fever and Kyasanur Forest disease viruses), and Bunyaviridae (Rift Valley fever).

Abstract: Compounds, methods and pharmaceutical compositions for treating viral infections, by administering certain novel semicarbazides, sulfonyl carbazides, ureas and related compounds in therapeutically effective amounts are disclosed. Methods for preparing the compounds and methods of using the compounds and pharmaceutical compositions thereof are also disclosed. In particular, the treatment and prophylaxis of viral infections such as caused by hemorrhagic fever viruses is disclosed, i.e., including but not limited to Arenaviridae (Junin, Machupo, Guanavito, Sabia and Lassa), Filoviridae (ebola and Marburg viruses), Flaviviridae (yellow fever, omsk hemorrhagic fever and Kyasanur Forest disease viruses), and Bunyaviridae (Rift Valley fever).

Abstract: Methods for enhancing the immune response to vaccination in animals, including humans, comprise administering interleukin-2 (IL-2) as part of the vaccination regimen, preferably for 5 to 14 days post-vaccination. In addition, compositions for enhancing the immune response of an animal to a vaccine employ IL-2 as an active ingredient, preferably human IL-2.

Abstract: Methods for enhancing the immune response to vaccination in animals, including humans, comprise administering interleukin-2 (IL-2) as part of the vaccination regimen, preferably for 5 to 14 days post-vaccination. In addition, compositions for enhancing the immune response of an animal to a vaccine employ IL-2 as an active ingredient, preferably human IL-2.

Abstract: Methods for enhancing the immune response to vaccination in animals, including humans, comprise administering interleukin-2 (IL-2) as part of the vaccination regimen, preferably for 5 to 14 days post-vaccination. In addition, compositions for enhancing the immune response of an animal to a vaccine employ IL-2 as an active ingredient, preferably human IL-2.

Abstract: Methods for enhancing the immune response to vaccination in animals, including humans, comprise administering interleukin-2 (IL-2) as part of the vaccination regimen, preferably for 5 to 14 days post-vaccination. In addition, compositions for enhancing the immune response of an animal to a vaccine employ IL-2 as an active ingredient, preferably human IL-2.

Abstract: Methods and compositions are provided for producing heterologous proteins in a micrcorganism host, particularly bacterium, without fusion to an endogenous protein. Particularly, the heterologous gene may be inserted into a vector comprising an endogenous gene, where the heterologous gene is preceded by a ribosomal binding site. A heterologous enzyme functional in a bacterial host is demonstrated.

Abstract: Methods for isolating thymidine kinase-encoding DNA of a herpes virus are described. These methods utilize degenerate primers based on regions of relatively conserved amino acid sequence in herpes virus thymidine kinase proteins to initiate a polymerase chain reaction which yields large amounts of the thymidine kinase-encoding DNA. The methods are illustrated in the isolation of the thymidine kinase gene of feline herpes virus, which can be used to construct recombinant thymidine kinase-negative feline herpes viruses for purposes of constructing live vaccines and expression vectors. In addition, the regulatory elements of the feline herpes virus thymidine kinase gene are useful in the construction of recombinant DNA vectors.

Abstract: Shipping fever, and other stress-related diseases in livestock, are treated by administration of a microencapsulated composition comprising IL-2 conjugated with a polyoxyethylene polymer, and mixed with a release-modulating amount of humen serum albumin. The microcapsules are administered parenterally, and release an effective amount of conjugated IL-2 continuously over a period of 14-30 days. These microcapsules are also effective in the treatment of cancer in mammals.

Abstract: Methods for enhancing the immune response to vaccination in animals, including humans, comprise administering interleukin-2 (IL-2) as part of the vaccination regimen, preferably for 5 to 14 days post-vaccination. In addition, compositions for enhancing the immune response of an animal to a vaccine employ IL-2 as an active ingredient, preferably human IL-2.

Abstract: Disclosed herein is a method of mitigating stress-related syndromes in livestock, such as shipping fever in cattle, by administration of human IL-2.

Abstract: Polypeptides that are synthesized or expressed directly in microorganisms, include an amino acid sequence that is homologous to at least a portion of gp70 envelope protein of FELV, and are immunogens that elicit or prime a humoral response in cats and immunize cats against FeLV infection. The microbially produced polypeptides are exemplified by a group of E. coli-expressed fusion proteins that comprise a portion of the trp leader peptide and a portion of the trp E protein fused to various portions of a subgroup B gp70 envelope protein. The synthesized polypeptides are exemplified by polypeptides that are homologous to segments of the hydrophilic domains of the gp70 protein.

Abstract: Polypeptides that are synthesized or expressed directly in microorganisms, include an amino acid sequence that is homologous to at least a portion of gp70 envelope protein of FELV, and are immunogens that elicit or prime a humoral response in cats and immunize cats against FeLV infection. The microbially produced polypeptides are exemplified by a group of E. coli-expressed fusion proteins that comprise a portion of the trp leader peptide and a portion of the trp E protein fused to various portions of a subgroup B gp70 envelope protein. The synthesized polypeptides are exemplified by polypeptides that are homologous to segments of the hydrophilic domains of the gp70 protein.