This disclosure provides novel broadly neutralizing anti-SARS-CoV-2 antibodies or antigen-binding fragments thereof. The disclosed anti-SARS-CoV-2 antibodies constitute a novel therapeutic strategy in protection from SARS-CoV-2 infections.

Antibodies that protect against respiratory viral infections including human parainfluenza viruses (HPIV), respiratory syncytial virus (RSV), and human metapneumovirus (HMPV) are described. Certain antibodies disclosed herein neutralize more than one virus (e.g., RSV and HMPV). The binding fragments of the antibodies can be engineered into numerous formats including those that provide simultaneous protection against multiple viruses.

The disclosure relates to respiratory virus ribonucleic acid (RNA) vaccines and combination vaccines, as well as methods of using the vaccines and compositions comprising the vaccines.

The disclosure relates to respiratory virus ribonucleic acid (RNA) vaccines and combination vaccines, as well as methods of using the vaccines and compositions comprising the vaccines.

The present invention provides antibodies that neutralize MERS-CoV and methods of use thereof. The invented antibody is used to treat MERS-CoV infections and symptoms thereof.

The present disclosure relates to, inter alia, a method of quantitating an amount of an antibody molecule from a mixture comprising two or more antibody molecules, comprising separating each of the two or more antibody molecules from the mixture by hydrophobic interaction chromatography high performance liquid chromatography (HIC-HPLC) and quantitating an amount of each antibody molecule, wherein the molecular weight of each antibody molecule is within 15 kDa of any other antibody molecule in the mixture and either each antibody molecule is different from another antibody molecule in the mixture by more than about 0.25 unit on the Kyte & Doolittle hydropathy scale or each of the antibody molecules when nm alone on HIC-HPLC elutes at distinct run time with little overlap from the other antibody molecules in the mixture, or both.

The present invention relates to a human antibody against a novel coronavirus and a variant thereof, or an immunologically active fragment of the human antibody. The human antibody against a novel coronavirus and a variant thereof, or an immunologically active fragment of the human antibody can effectively keep COVID-19 virus from infecting a host by binding with high affinity to an RBD region of a spike protein of COVID-19 virus or a variant thereof, may be utilized for preventing or treating COVID-19 virus infection by binding to a variety of all variants of COVID-19 virus with high affinity, and may be advantageously utilized in diagnosis and epidemiological surveys of highly infectious covid-19 virus by enabling rapid diagnosis (detection) of various types of COVID-19 virus.

The present invention relates to a modified virus-like particle of RNA bacteriophage AP205 (AP205 VLP) comprising AP205 coat protein dimers to which antigenic polypeptides are fused at the N-terminus and/or at the C-terminus. The modified AP205 VLPs can be used as a platform, in particular for vaccine development, in generating immune responses against a variety of antigens.

The disclosure relates generally to the field of immune binding proteins and method for obtaining immune binding proteins from genomic or other sources. The disclosure also relates to anti-SARS-COV-2 antibodies that have been obtained from subjects who became immune to this coronavirus, and to methods of using these anti-SARS-COV-2 antibodies. Methods for neutralizing SARS-COV-2 are disclosed, as well treatments for SARS-COV-2 using the anti-SARS-COV-2 antibodies.

Anti-SARS-CoV-specific llama single domain antibodies, methods of making and characterizing those antibodies, and methods of using those antibodies are described herein. In some embodiments, the antibodies may bind to both SARS-CoV-1 and SARS-CoV-2. In some embodiments, the antibodies bind to S.sub.1 of the spike protein of SARS-CoV-2 including, for example, to the receptor binding domain (RBD) of S.sub.1. In some embodiments, the antibodies may block the binding of SARS-CoV-1 and/or SARS-CoV-2 to ACE-2.