This book is addressed to those, who is interested in alternative opinion of doctors having an own idea about the problem of viruses and immunity. Author of book, known врач-кинезитерапевт, doctor of medical sciences, professor Sergey Бубновский offers a personal opinion on this theme, that conflicts with conventional wisdom of other specialists, counting a self-isolation in an apartment by an only method to protect itself from viral infections. Not denying the necessity of development of antiviral vaccines, an author offers the "vaccine" is a correct way of life on И.И. Мечникову.