Glycoconjugates, therapeutic compositions containing the glycoconjugates and therapeutic methods of using the glycoconjugates are disclosed. In particular, peptide constituents of aglyco 10B, which are immunogenic epitopes responsible for recognition of antigens by the immune system are provided. These glycoconjugates are useful in prevention of influenza virus binding to cells, treatment of schizophrenia and diagnosing chronic viral disease associated with development of cancer.