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What is leprosy?

Leprosy is an ancient disease caused by a bacteria (Mycobacterium leprae) that is similar to the bacteria that causes tuberculosis. Symptoms include light red or purplish spots on the skin; yellow or brown protuberances (lumps) on the eyes, nose, and throat; and numbness in the arms and legs. Although the disease originated in India, it was introduced into Europe in the fifth century B.C., probably by soldiers under the direction of the Persian ruler Xerxes (c. 519–465 B.C.). By the 1100s leprosy had reached epidemic proportions in Western Europe, where it killed commoner and nobleman alike (including the Portuguese king Afonso II and Scottish king Robert I). European explorers and settlers brought leprosy with them to the New World (the European term for North and South America), where it was previously unknown. Without effective treatment, lepers, who were often disfigured, were feared and shunned. Most lepers...

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1. Origins
   1. How did early humans cure illness and disease?
   2. Who was the first doctor in history?
   3. What is the Hippocratic Oath?
   4. What are the four humors?
   5. When did biological warfare originate?
   6. Were there hospitals before the Middle Ages?
   7. When was the first North American hospital built?
   8. What advances were made in medicine during the Renaissance?
   9. How old is the concept of public health?
   10. What is Gray's Anatomy?
2. Modern Medicine
   1. When did modern medicine begin?
   2. Who invented vaccination?
   3. When did modern surgery begin?
   4. When was anesthesia first used?
   5. What surgical advances were introduced in the late twentieth century?
   6. Who introduced the use of antiseptics in hospitals?
   7. What are Louis Pasteur's contributions to the study of disease?
   8. When were antibiotics invented?
   9. Why are new antibiotics constantly being developed?
   10. Why is Florence Nightingale famous?
   11. When was the International Red Cross founded?
   12. Who discovered the X ray?
   13. Who was Clara Barton?
   14. What were the Curies' contributions to medicine?
   15. How did Jonas Salk and Albert B. Sabin save lives?
   16. When did the first heart transplant take place?
   17. When was the first test-tube baby born?
   18. When was the first kidney transplant?
   19. What is leprosy?
   20. What is the plague?
   21. Is yellow fever still a deadly disease?
   22. What was the first disease conquered by humans?
   23. Do scientists know when the AIDS virus first appeared?
   24. Who was Typhoid Mary?
   25. Has the flu ever reached epidemic proportions?
   26. What are CT and MRI scans?
3. Psychology
   1. Why are Pavlov's dogs famous?
   2. What is behaviorism?
   3. What were Sigmund Freud's contributions to the study of human psychology?
   4. What does the term "Jungian" mean?
   5. Who was Dorothea Dix
   6. What is depression?