The present invention provides a recombinant Vaccinia virus as a dengue virus vaccine that can be used as a therapeutic or prophylactic agent in the clinic. This recombinant Vaccinia virus is characterized by including: all or part of a cDNA that encodes a non-structural protein from a dengue virus; and an expression promoter.

The present disclosure relates to a novel murine parvovirus, sequences encoded thereby, and applications therefor. In one embodiment the disclosure provides a method for detecting the presence of a parvovirus in a sample, comprising detecting one or more nucleic acids or polypeptides derived from the parvovirus, or antibodies against the parvovirus, in the sample. Also provided are vectors and host cells comprising sequences encoded by the parvovirus and related sequences. Also provided are animal models of kidney disease associated with infection by the parvovirus.

Provided are methods for preventing and/or treating oral diseases, disorders, and/or conditions. In some embodiments, the methods relate to administering to the oral cavity of a subject in need thereof a composition that includes an effective amount of ginger-derived exosome-like nanoparticles (GELNs) or a biologically active component thereof. Also provided are methods for preventing and/or treating periodontitis, methods for reducing growth of and/or pathogenicity of microorganisms in the oral cavities of subjects, methods for reducing microorganismal motility, and methods for reducing bone loss in the oral cavities of subjects associated with infection with microorganisms. Also provided are compositions that can be employed in the disclosed methods.

The present disclosure provides a transgenic, immunocompromised mouse engineered to express a human angiotensin converting enzyme 2 (huACE2) sequence. The huACE2 sequence may be operably linked to a human keratin 18 (hKRT18) promoter or the endogenous mouse angiotensin converting enzyme 2 (mACE2) promoter. Transgenic immunocompromised mice of the present disclosure may be utilized in methods of evaluating a test agent for reducing or preventing SARS-CoV-2 infection.

Provided herein are multivalent particles and compositions of multivalent particles for blocking viral infection.

Genetically modified non-human animals expressing human EPO from the animal genome are provided. Also provided are methods for making non-human animals expressing human EPO from the non-human animal genome, and methods for using non-human animals expressing human EPO from the non-human animal genome. These animals and methods find many uses in the art, including, for example, in modeling human erythropoiesis and erythrocyte function; in modeling human pathogen infection of erythrocytes; in in vivo screens for agents that modulate erythropoiesis and/or erythrocyte function, e.g. in a healthy or a diseased state; in in vivo screens for agents that are toxic to erythrocytes or erythrocyte progenitors; in in vivo screens for agents that prevent against, mitigate, or reverse the toxic effects of toxic agents on erythrocytes or erythrocyte progenitors; in in vivo screens of erythrocytes or erythrocyte progenitors from an individual to predict the responsiveness of an individual to a disease therapy.

Disclosed herein are nucleic acids encoding for and proteins expressing chimeric C1q polypeptides, non-human animals comprising said nucleic acids, and methods of making or using said non-human animals.

The present invention provides an expression vector for preventing or inhibiting HIV entry, fusion or replication in mammalian cells. In particular, the invention provides a recombinant retroviral vector that encodes an inhibitor of a HIV co-receptor, such as CCR5 or CXCR4, and a protein that inhibits HIV fusion to target cells and/or HIV replication. Pharmaceutical compositions comprising such constructs and methods of use thereof to prevent or treat HIV infection in a patient are also disclosed.

In one aspect, provided herein are antibodies that bind to Zika virus non-structural protein 1 (NS1) and compositions comprising the same. In a specific embodiment, such antibodies or compositions thereof may be used to passively immunize a subject against Zika virus. In another embodiment, such antibodies or compositions thereof may be used to diagnose a Zika virus infection. In another aspect, provided herein are recombinant NS 1 polypeptides and compositions comprising the same that may be used to immunize a subject against Zika virus disease.

The present invention provides a pharmaceutical composition for treating hepatitis B. The present invention provides a composition for inhibiting the replication of hepatitis B virus and a pharmaceutical composition for treating hepatitis B virus infection, each comprising an inhibitory substance against microRNA binding to the 5′ epsilon signal sequence in the pregenomic RNA of hepatitis B virus.