In the book "On Leprosy: In Clinical and Pathological Aspects", H. Armauer Hansen and Carl Loft investigate one of the oldest and most terrible diseases of mankind - leprosy. The authors consider in detail the clinical manifestations of this disease, focusing on the mechanisms of its spread and impact on the human body. With the help of everyday examples and scientific conclusions, they reveal the essence of leprosy as a problem of society and medicine. This book is a valuable source of information for health professionals, researchers, and anyone interested in the history and treatment of this disease.