Described is hybrid viral vector comprising: a first virus such as bacteriophage T4; one or more second virus such as adeno-associated virus (AAV) attached to the first virus through cross-bridges, such as avidin-biotin cross-bridges; one or more DNA molecules packaged in the first virus; one or more nucleic acid molecules packaged in the second virus; and one or more proteins displayed on the surface of the first virus. Also described are methods of making and using such a hybrid viral vector.

Some embodiments of the invention include inventive polypeptides (e.g., mutant VP2 proteins) and virus-like particles made from the inventive polypeptides. Other embodiments of the invention include compositions for treating (e.g., preventing) parvovirus (e.g., erythrovirus or parvovirus B19) infection and other diseases. Further embodiments include methods for administering compositions to an animal. Other embodiments include treating (e.g., preventing) parvovirus (e.g., erythrovirus or parvovirus B19) infection and other diseases. Still other embodiments include nucleic acid sequences that encode the inventive polypeptides. Additional embodiments of the invention are also discussed.

Some embodiments of the invention include inventive polypeptides (e.g., mutant VP2 proteins) and virus-like particles made from the inventive polypeptides. Other embodiments of the invention include compositions for treating (e.g., preventing) parvovirus (e.g., erythrovirus or parvovirus B19) infection and other diseases. Further embodiments include methods for administering compositions to an animal. Other embodiments include treating (e.g., preventing) parvovirus (e.g., erythrovirus or parvovirus B19) infection and other diseases. Still other embodiments include nucleic acid sequences that encode the inventive polypeptides. Additional embodiments of the invention are also discussed.

Described is hybrid viral vector comprising: a first virus such as bacteriophage T4; one or more second virus such as adeno-associated virus (AAV) attached to the first virus through cross-bridges, such as avidin-biotin cross-bridges; one or more DNA molecules packaged in the first virus; one or more nucleic acid molecules packaged in the second virus; and one or more proteins displayed on the surface of the first virus. Also described are methods of making and using such a hybrid viral vector.

This invention generally relates to immunogenic compositions that comprise an RNA component and a polypeptide component. Immunogenic compositions that deliver antigens in two different formsa first antigen from a pathogen, in RNA-coded form; and a second antigen from a different pathogen, in polypeptide formare effective in inducing immune response to both pathogens.

This invention generally relates to immunogenic compositions that comprise an RNA component and a polypeptide component. Immunogenic compositions that deliver antigens in two different formsa first antigen from a pathogen, in RNA-coded form; and a second antigen from a different pathogen, in polypeptide formare effective in inducing immune response to both pathogens.

Some embodiments of the invention include inventive polypeptides (e.g., mutant VP2 proteins) and virus-like particles made from the inventive polypeptides. Other embodiments of the invention include compositions for treating (e.g., preventing) parvovirus (e.g., erythrovirus or parvovirus B19) infection and other diseases. Further embodiments include methods for administering compositions to an animal. Other embodiments include treating (e.g., preventing) parvovirus (e.g., erythrovirus or parvovirus B19) infection and other diseases. Still other embodiments include nucleic acid sequences that encode the inventive polypeptides. Additional embodiments of the invention are also discussed.

Described is hybrid viral vector comprising: a first virus such as bacteriophage T4; one or more second virus such as adeno-associated virus (AAV) attached to the first virus through cross-bridges, such as avidin-biotin cross-bridges; one or more DNA molecules packaged in the first virus; one or more nucleic acid molecules packaged in the second virus; and one or more proteins displayed on the surface of the first virus. Also described are methods of making and using such a hybrid viral vector.

Some embodiments of the invention include inventive polypeptides (e.g., mutant VP2 proteins) and virus-like particles made from the inventive polypeptides. Other embodiments of the invention include compositions for treating (e.g., preventing) parvovirus (e.g., erythrovirus or parvovirus B19) infection and other diseases. Further embodiments include methods for administering compositions to an animal. Other embodiments include treating (e.g., preventing) parvovirus (e.g., erythrovirus or parvovirus B19) infection and other diseases. Still other embodiments include nucleic acid sequences that encode the inventive polypeptides. Additional embodiments of the invention are also discussed.

The present invention is directed to mutant parvovirus VP1 unique region polypeptides, compositions comprising such polypeptides, methods of making such compositions, as well as methods for identifying the likely presence of parvovirus-neutralizing antibodies, and methods for assessing the functional immunogenicity of parvovirus vaccines and measuring a correlate of efficacy to assess a treatment for parvovirus infection.