D.K. Lvov, D.I. lvanovskii Institute of Virology, USSR Academy of Medical Sciences. Moscow.

• The Immunology of Influenza 1. Introduction 2. Antibodies in Secretions of the Respiratory Tract 3. Antibodies in Serum 4. Cell-Mediated Immunity 5. Some Elements of the Influenza Immunity Theory and the Problem of a Universal Vaccine. Forms and Mechanisms of Influenza A Virus Circulation in the Body 1. Introduction 2. Experimental Work in Animals on Forms in which the Virus 3. Investigation of Virus Circulation in Human Subjects 3.1 Group 1: Influenza patients 3.2 Group 2: Patients with neurological disorders 3.3 Group 3: Convalescents 4. Further Investigations

D.K. Lvov, D.I. lvanovskii Institute of Virology, USSR Academy of Medical Sciences. Moscow.

• The Immunology of Influenza 1. Introduction 2. Antibodies in Secretions of the Respiratory Tract 3. Antibodies in Serum 4. Cell-Mediated Immunity 5. Some Elements of the Influenza Immunity Theory and the Problem of a Universal Vaccine. Forms and Mechanisms of Influenza A Virus Circulation in the Body 1. Introduction 2. Experimental Work in Animals on Forms in which the Virus 3. Investigation of Virus Circulation in Human Subjects 3.1 Group 1: Influenza patients 3.2 Group 2: Patients with neurological disorders 3.3 Group 3: Convalescents 4. Further Investigations

D.K. Lvov, D.I. lvanovskii Institute of Virology, USSR Academy of Medical Sciences. Moscow.

• The Immunology of Influenza 1. Introduction 2. Antibodies in Secretions of the Respiratory Tract 3. Antibodies in Serum 4. Cell-Mediated Immunity 5. Some Elements of the Influenza Immunity Theory and the Problem of a Universal Vaccine. Forms and Mechanisms of Influenza A Virus Circulation in the Body 1. Introduction 2. Experimental Work in Animals on Forms in which the Virus 3. Investigation of Virus Circulation in Human Subjects 3.1 Group 1: Influenza patients 3.2 Group 2: Patients with neurological disorders 3.3 Group 3: Convalescents 4. Further Investigations