Abstract: The present disclosure provides methods of generating recombinant bacteriophage genomes via semi-synthesis. Specifically, the present technology provides methods of integrating a heterologous nucleic acid sequence into a bacteriophage genome, and isolating recombinant bacteriophages that express the heterologous nucleic acid sequence.

Abstract: An inactivated whole-virus influenza vaccine may have its antibody-inducing ability is maintained or enhanced and may cause fewer side reactions. A method for preparing an inactivated whole-virus influenza vaccine may use an embryonated chicken egg method, including subjecting a virus solution including a whole influenza virus collected from embryonated chicken eggs to a hypotonic treatment.

Abstract: The present invention relates to a method of preparing an influenza working virus seed stock, a method of increasing infectivity of an influenza working virus seed stock, a method of preparing an influenza vaccine using the seed stock, an influenza vaccine prepared by the method, and an influenza working virus seed stock having increased infectivity.

Abstract: The present disclosure provides a scalable and cost-effective method of purifying recombinant viruses, such as recombinant lentiviruses. Also provided herein are recombinant viruses (e.g., lentiviruses) purified using the methods provided herein, which have a low level of impurities and high activity retention.

Abstract: Compounds, compositions, and methods are provided for covalently linking an antibody or an antibody fragment to a cargo molecule, such as a therapeutic or a diagnostic agent, using a combination of enzymatic glycan remodeling and click chemistry. The method allows a cargo molecule to be selectively and efficiently attached post-translationally to an antibody or an antibody fragment. Also provided are antibody drug conjugates, methods of making, and uses thereof.

Abstract: The present invention relates to mRNAs suitable for use as mRNA-based vaccines against infections with MERS coronaviruses. Additionally, the present invention relates to a composition comprising the mRNAs and the use of the mRNAs or the composition for the preparation of a pharmaceutical composition, especially a vaccine, e.g. for use in the prophylaxis or treatment of MERS coronavirus infections. The present invention further describes a method of treatment or prophylaxis of infections with MERS coronavirus using the mRNA sequences.

Abstract: The subject invention pertains to isolated influenza virus that is capable of infecting canids and causing respiratory disease in the canid. The subject invention also pertains to compositions and methods for inducing an immune response against an influenza virus of the present invention. The subject invention also pertains to compositions and methods for identifying a virus of the invention and diagnosing infection of an animal with a virus of the invention.

Abstract: This disclosure relates to boosting the immunogenicity of vaccines using an adjuvant combination comprising a saponin and an agonist of the intracellular stimulator of interferon genes pathway. In certain embodiments, the vaccine comprises an inactivated virus, attenuated virus, virus protein, virus like particle, or virosome. In certain embodiments, the human subject is of advanced age or elderly. In certain embodiments, the viral vaccine is an influenza vaccine.

Abstract: A pDNA-based vaccine against SARS-CoV-2 and methods for preventing or treating COVID-19 using it. The pDNA-vaccine encodes an immunogenic portion of SARS-CoV S1 protein, such as that encoded by SEQ ID NO: 1 or a fragment thereof, and may be conveniently administered intramuscularly without the need for electroporation or use of a gene gun.

Abstract: Provided herein are methods for the purification of recombinant adeno-associated virus (rAAV) vectors that can be used for gene transfer and specifically for gene therapy or vaccination. Recombinant AAV vectors of the invention are substantially free of in-process impurities, including production components such as cellular nucleic acids, cellular proteins, helper virus, and media components.

Abstract: Isolated peptides comprising one or more antigenic sites of filovirus glycoprotein and methods of their use and production are disclosed. Nucleic acid molecules encoding the peptides are also provided. In several embodiments, the peptides can be used to induce an immune response to filovirus glycoprotein, such as Zaire ebolavirus glycoprotein, in a subject, for example, to treat or prevent infection of the subject with the virus.

Abstract: A recombinant adeno-associated virus (rAAV) vector comprising an AAVhu68 capsid produced in a production system comprising a nucleotide sequence of SEQ ID NO: 1, or a sequence at least 75% identical thereto which encodes SEQ ID NO:2. The AAVhu68 capsid comprises subpopulations of highly deamidated asparagine residues in asparagine-glycine pairs in the amino acid sequence of SEQ ID NO: 2. Also provided are compositions containing the rAAV and uses thereof. Additionally, rAAV having an engineered AAV capsid comprising at least one subpopulation of vp1 or vp2 proteins having a Val at amino acid position 157 with reference to the AAVhu68 vp1 numbering are provided.

Abstract: Provided herein are details on the construction of a recombinant African Swine Fever Virus (ASFV) live attenuated vaccine for prevention of ASF caused by various strains of ASFV, such as the highly virulent Georgia 2007 isolate (“ASFV-G”). An exemplary vaccine comprises the ASFV-G?A137R modified virus, a recombinant ASFV-G modified by deleting a portion of the A137R ORF rendering the A137R gene nonfunctional.

Abstract: This document relates to adenovirus vectors and methods and materials related to using adenovirus vectors. For example, viruses, nucleic acid molecules encoding viruses, cell lines containing viral vectors, and methods for using viruses to deliver nucleic acid to cells in vitro or in vivo are provided. Methods and materials for using adenovirus vectors to induce immune responses and to treat cancer also are provided.

Abstract: The disclosure relates to a polypeptide comprising, or consisting of, the amino acid sequence of SEQ ID NO: 1, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 9 or a sequence having at least 97%-100% sequence identity to one of SEQ ID NO: 1, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 9 for use as an immunogen for the purpose of eliciting an immune response in a subject susceptible to infection with a coronavirus. The disclosed polypeptide is further useful in reducing the severity of symptoms associated with a coronavirus infection. In addition to use in a protein-based vaccine, the polypeptide of the disclosure can be encoded by a nucleic acid/ribonucleic acid and used in a nucleic acid vaccine or viral vector vaccine.

Abstract: The present invention discloses products and the methods of uses of the products for preventing and treating infectious diseases and the disorders or conditions inducible by harmful antibodies. The harmful antibodies are induced during infection, or vaccination, or use of therapeutic antibodies. The products of the present disclosure comprise immunoglobulin products, serum or plasma, specific antibodies to viral pathogens.

Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of retinal cells as compared to the infectivity of the retinal cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and in clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more cells of the retina for the treatment of retinal disorders and diseases.

Abstract: The invention relates to an immunogenic or vaccine composition against the 2019 novel coronavirus (SARS-CoV-2), comprising a nucleic acid construct encoding a SARS-CoV-2 coronavirus Spike (S) protein antigen or a fragment thereof comprising the receptor-binding domain, wherein the nucleic acid construct sequence is codon-optimized for expression in human.

Abstract: This invention reveals the pharmaceutical composition that includes the surface antigen (HBsAg) of the hepatitis B virus (HBV) and the antigen of the nucleocapsid (or core, HBcAg) of the same virus. The HBcAg of this composition contains messenger ribonucleic acid (mRNA) at a proportion of over 45% of the total amount of ribonucleic acid (RNA) in this antigen. Because of the changes in the constitution of the antigens forming it, the composition of the invention is useful for the prevention or treatment of chronic hepatitis B. It also covers the use of this pharmaceutical composition in the production of a drug for immuno-prophylaxis or immunotherapy against HBV infection, and its use to increase the immune response against an additional antigen that is co-administered with the mixture of these antigens.

Abstract: Recombinant expression of influenza virus surface proteins in the fungus Myceliophthora thermophila strain C1 is provided. The recombinant proteins are for use in influenza vaccine compositions.