Abstract: Immunogenic compositions for use in treating, preventing and diagnosing infection caused by the California (CAL) serotype of the genus Bunyavirus, such as La Crosse virus (LACV), are disclosed. Also described are reagents for use in diagnostic assays.

Abstract: An animal model for HCV replication and/or production of virus or virus like particles is provided. The invention utilizes an HCV replicon present in a cell to deliver HCV nucleic acid and replicate and express HCV proteins in an animal model comprising an animal that has been immunocompromised. The invention further provides a method of treatment or prevention of HCV in a mammal which comprises administering to the mammal a combination which comprises an immunomodulatory compound and another antiviral agent. Also provided are cell lines showing a decreased sensitivity to interferon alpha or some other immunomodulator and methods of making or isolating such cell lines.

Abstract: The present invention discloses novel methods and compositions for viral inhibition, particularly inhibition of HCV and SARS. The invention also provides compositions including novel oxoazepanylacetamide derivatives useful for viral inhibition.

Abstract: The present invention discloses methods and compositions for viral inhibition, particularly inhibition of HCV and SARS. The invention also provides compositions including carbazole derivatives useful for viral inhibition.

Abstract: The hypervariable region (E2HV) of the putative hepatitis C virus (HCV) glycoprotein E2/NS1, between about amino acid 384 to about amino acid 414, is a rapidly evolving region of HCV, and is likely to be under positive immune selection. A newly discovered motif within this hypervariable region is immunogenic and conserved with respect to the character of the amino acids. In many isolates, this motif falls between amino acids 401 to 406 or 407. The discovery of this motif allows for additional materials and methods to treat and diagnose HCV.

Abstract: An outbreak of a virulent respiratory virus, now known as Severe Acute Respiratory Syndrome (SARS), was identified in Hong Kong, China and a growing number of countries around the world in 2003. The invention relates to nucleic acids and proteins from the SARS coronavirus. These nucleic acids and proteins can be used in the preparation and manufacture of vaccine formulations, diagnostic reagents, kits, etc. The invention also provides methods for treating SARS by administering small molecule antiviral compounds, as well as methods of identifying potent small molecules for the treatment of SARS.

Abstract: The present invention is directed to novel immune potentiators, novel vaccine adjuvants, novel compounds and pharmaceutical compositions, novel methods for treating viral infections, including HCV, by administering the compounds, and novel methods for modulating an immune response by administering the compounds.