| D003141 |
Communicable Diseases |
An illness caused by an infectious agent or its toxins that occurs through the direct or indirect transmission of the infectious agent or its products from an infected individual or via an animal, vector or the inanimate environment to a susceptible animal or human host. |
Infectious Diseases,Communicable Disease,Disease, Communicable,Disease, Infectious,Diseases, Communicable,Diseases, Infectious,Infectious Disease |
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| D004813 |
Epidemiology |
Field concerned with the determination of causes, incidence, and characteristic behavior of disease outbreaks affecting human populations. It includes the interrelationships of host, agent, and environment as related to the distribution and control of disease. |
Social Epidemiology,Epidemiologies, Social,Epidemiology, Social,Social Epidemiologies |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D000047 |
Academies and Institutes |
Organizations representing specialized fields which are accepted as authoritative; may be non-governmental, university or an independent research organization, e.g., National Academy of Sciences, Brookings Institution, etc. |
Institutes,Research Institutes,Academies,Academy and Institute,Institutes and Academies,Academy,Institute and Academy,Institute, Research,Institutes, Research,Research Institute |
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| D012425 |
Russia (Pre-1917) |
A monarchy located in north Asia bordering the Arctic Ocean, extending from Europe (the portion west of the Urals) to the North Pacific Ocean. St Petersburg was the capital 1712–1918. Moscow was the capital before St. Petersburg and following it. |
Russia (Pre 1917) |
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| D012577 |
Schools, Medical |
Educational institutions for individuals specializing in the field of medicine. |
Medical Schools,Medical School,School, Medical |
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| D014586 |
USSR |
A country located from the Baltic and Black seas to the Pacific Ocean and, for a time including 15 Soviet Socialist Republics. The capital was Moscow. |
Soviet Union,Union of Soviet Socialist Republics |
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| D049673 |
History, 20th Century |
Time period from 1901 through 2000 of the common era. |
20th Century History,20th Cent. History (Medicine),20th Cent. History of Medicine,20th Cent. Medicine,Historical Events, 20th Century,History of Medicine, 20th Cent.,History, Twentieth Century,Medical History, 20th Cent.,Medicine, 20th Cent.,20th Cent. Histories (Medicine),20th Century Histories,Cent. Histories, 20th (Medicine),Cent. History, 20th (Medicine),Century Histories, 20th,Century Histories, Twentieth,Century History, 20th,Century History, Twentieth,Histories, 20th Cent. (Medicine),Histories, 20th Century,Histories, Twentieth Century,History, 20th Cent. (Medicine),Twentieth Century Histories,Twentieth Century History |
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