Abstract: The present disclosure provides methods related to determining the level of afucosylated Fc glycans in IgG antibodies in a biological sample from a subject. This level can be used in methods aimed at monitoring and/or treating subject suffering from an acute flavivirus infection and/or who are at risk for progression to clinically significant infection or disease. This level can also be used in a vaccination method to ensure that those who receive a flavivirus vaccine have a reduced risk of reacting to the vaccine be developing clinically significant infection or disease. The disclosure also provides treatment methods based on inhibiting Fc?RIIA or Fc?RIIIA receptor signaling. Also provided are novel cell lines that are useful in measuring afucosylated Fc glycans.

Abstract: The present disclosure provides methods related to determining the level of afucosylated Fc glycans in IgG antibodies in a biological sample from a subject. This level can be used in methods aimed at monitoring and/or treating subject suffering from an acute flavivirus infection and/or who are at risk for progression to clinically significant infection or disease. This level can also be used in a vaccination method to ensure that those who receive a flavivirus vaccine have a reduced risk of reacting to the vaccine be developing clinically significant infection or disease. The disclosure also provides treatment methods based on inhibiting Fc?RIIA or Fc?RIIIA receptor signaling. Also provided are novel cell lines that are useful in measuring afucosylated Fc glycans.

Abstract: Provided herein are polypeptides comprising portions of the influenza virus hemagglutinin, compositions comprising such polypeptides that can be used as immunogens in vaccines and methods of their use to generate an immune response against multiple influenza subtypes in a subject.

Abstract: Provided herein are polypeptides comprising portions of the influenza virus hemagglutinin, compositions comprising such polypeptides that can be used as immunogens in vaccines and methods of their use to generate an immune response against multiple influenza subtypes in a subject.

Abstract: Provided herein are methods of producing neutralizing monoclonal antibodies, by cyclical immunization, that cross-react with strains of Influenza virus of the same subtype or different subtypes. Also provided herein are compositions comprising such antibodies and methods of using such antibodies to diagnose, prevent or treat Influenza virus disease.

Abstract: Provided herein are methods of producing neutralizing monoclonal antibodies, by cyclical immunization, that cross-react with strains of Influenza virus of the same subtype or different subtypes. Also provided herein are compositions comprising such antibodies and methods of using such antibodies to diagnose, prevent or treat Influenza virus disease.

Abstract: Provided herein are methods of producing neutralizing monoclonal antibodies, by cyclical immunization, that cross-react with strains of Influenza virus of the same subtype or different subtypes. Also provided herein are compositions comprising such antibodies and methods of using such antibodies to diagnose, prevent or treat Influenza virus disease.

Abstract: Provided herein are methods of producing neutralizing monoclonal antibodies, by cyclical immunization, that cross-react with strains of Influenza virus of the same subtype or different subtypes. Also provided herein are compositions comprising such antibodies and methods of using such antibodies to diagnose, prevent or treat Influenza virus disease.

Abstract: Provided herein are polypeptides comprising portions of the influenza virus hemagglutinin, compositions comprising such polypeptides that can be used as immunogens in vaccines and methods of their use to generate an immune response against multiple influenza subtypes in a subject.

Abstract: Provided herein are methods of producing neutralizing monoclonal antibodies, by cyclical immunization, that cross-react with strains of Influenza virus of the same subtype or different subtypes. Also provided herein are compositions comprising such antibodies and methods of using such antibodies to diagnose, prevent or treat Influenza virus disease.