Human Diseases. Diseases that affect humans need to be diagnosed accurately before they can be treated.
In this section, diagnosis, pathogenesis, identification of causative organism, prevention including vaccination wherever available, treatment and drugs commonly prescribed are given. Details of the following diseases are given in this section. Click on the title to open. Black Death. Spread of the Black Death in Europe (1346–53) The Black Death is thought to have originated in the arid plains of central Asia, where it then travelled along the Silk Road, reaching the Crimea by 1343.[6] From there, it was most likely carried by Oriental rat fleas living on the black rats that were regular passengers on merchant ships.
Spreading throughout the Mediterranean and Europe, the Black Death is estimated to have killed 30–60% of Europe's total population.[7] In total, the plague reduced the world population from an estimated 450 million down to 350–375 million in the 14th century. The aftermath of the plague created a series of religious, social, and economic upheavals, which had profound effects on the course of European history. It took 150 years for Europe's population to recover. Pathology. Pathology is the precise study and diagnosis of disease.
The word pathology is from Ancient Greek πάθος, pathos which may be translated into English as either "experience" or "suffering", and -λογία, -logia, "an account of" or "the study of". Pathologization, to pathologize, refers to the process of defining a condition or behavior as pathological, e.g. pathological gambling. Health.discovery.com. WHO (World Health Organization.