The present invention relates to monoclonal antibodies which have high anti-RSV neutralizing titers. The invention further provides for isolated nucleic acids encoding the antibodies of the invention and host cells transformed therewith. The invention yet further provides for diagnostic, prophylactic and therapeutic methods employing the antibodies and nucleic acids of the invention, particularly as a passive immunotherapy agent in infants and the elderly.

The present invention is intended to provide an adjuvant having high safety to living bodies and an action to sufficiently reinforce immune function, and a vaccine comprising the adjuvant. Specifically, the present invention relates to 34 novel adjuvant candidate compounds, which have been identified by screening 145 food additives and 51 injection additives, using, as indicators, an increase in the antibody titer against influenza virus and a protective effect against infection with influenza virus, and then selecting those having the function of increasing the antiviral antibody titer in blood and the protective effect against viral infection. In addition, the present invention also relates to a vaccine comprising these adjuvant candidate compounds.

The present invention provides compositions and systems for delivery of nanocarriers to cells of the immune system. The invention provides vaccine nanocarriers capable of stimulating an immune response in T cells and/or in B cells, in some embodiments, comprising at least one immunomodulatory agent, and optionally comprising at least one targeting moiety and optionally at least one immunostimulatory agent. The invention provides pharmaceutical compositions comprising inventive vaccine nanocarriers. The present invention provides methods of designing, manufacturing, and using inventive vaccine nanocarriers and pharmaceutical compositions thereof. The invention provides methods of prophylaxis and/or treatment of diseases, disorders, and conditions comprising administering at least one inventive vaccine nanocarrier to a subject in need thereof.

A method for treating an influenza virus infection is described. The disclosed method generally involves administering an effective amount of a compound (A), for example baloxavir marboxil, and a compound (B), for example a neuraminidase inhibor, to a subject that (1) has an influenza virus infection, (2) has been symptomatic of the influenza virus infection for no more than 96 hours, and (3) further has at least one severe influenza condition selected from the following: (a) being hospitalized due to severe influenza virus infection, (b) requiring an extension of hospitalization because of the influenza virus infection during the hospitalization, (c) having a National Early Warning Score 2 of four or more, (d) being on support for respiration, and (e) having at least one complication attributable to the influenza virus infection that necessitates hospitalization.

A method for treating an influenza virus infection is described. The disclosed method generally involves administering an effective amount of a compound (A), for example baloxavir marboxil, and a compound (B), for example a neuraminidase inhibor, to a subject that (1) has an influenza virus infection, (2) has been symptomatic of the influenza virus infection for no more than 96 hours, and (3) further has at least one severe influenza condition selected from the following: (a) being hospitalized due to severe influenza virus infection, (b) requiring an extension of hospitalization because of the influenza virus infection during the hospitalization, (c) having a National Early Warning Score 2 of four or more, (d) being on support for respiration, and (e) having at least one complication attributable to the influenza virus infection that necessitates hospitalization.

This invention provides highly attenuated influenza viruses and vaccines. The attenuated viruses and vaccines proliferate well and have high safety factors. The attenuated viruses providing protective immunity from challenge by virus of the same subtype, as well as cross protection against heterologous viruses.

The disclosure provides compounds of formula II with warheads and their use in treating medical diseases or disorders, such as viral infections. Pharmaceutical compositions and methods of making various compounds with warheads are provided. The compounds are contemplated to inhibit proteases, such as the 3C, CL- or 3CL-like protease.

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Provided herein are methods for treating, reducing or preventing influenza A virus infection in a patient, as well as compositions and articles of manufacture for treating, reducing or preventing influenza A virus infection in a patient.

Provided herein are methods for treating, reducing or preventing influenza A virus infection in a patient, as well as compositions and articles of manufacture for treating, reducing or preventing influenza A virus infection in a patient.

Provided herein are methods and compositions for engineering antigen-presenting cells (APCs), such as dendritic cells (DCs), macrophages, and B-Cells, that are modified to express viral antigens. With this approach, large cell banks can be created that can be rapidly modified and deployed to fight various types of infectious diseases such as those associated with coronaviruses and other viral infections.