The present invention relates to a combination pharmaceutical composition comprising a) an activated-potentiated form of an antibody to at least one cytokine and b) an activated-potentiated form of an antibody to at least one receptor, and methods of treating and preventing the infectious diseases, including bacterial infections caused by different infectious agents such as pseudotuberculosis, whooping cough, yersiniosis, pneumonitis of different etiology, and acute and chronic viral infections such as acute respiratory tract infections, influenza of different types, acute viral hepatitis A, B, C and other types of hepatitis, the diseases and conditions caused by HIV or associated with HIV, including AIDS.