| D007109 |
Immunity |
Nonsusceptibility to the invasive or pathogenic effects of foreign microorganisms or to the toxic effect of antigenic substances. |
Immune Process,Immune Response,Immune Processes,Immune Responses,Process, Immune,Response, Immune |
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| 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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| D004196 |
Disease Outbreaks |
Sudden increase in the incidence of a disease. The concept includes EPIDEMICS and PANDEMICS. |
Outbreaks,Infectious Disease Outbreaks,Disease Outbreak,Disease Outbreak, Infectious,Disease Outbreaks, Infectious,Infectious Disease Outbreak,Outbreak, Disease,Outbreak, Infectious Disease,Outbreaks, Disease,Outbreaks, Infectious Disease |
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| D004463 |
Ecology |
The branch of science concerned with the interrelationship of organisms and their ENVIRONMENT, especially as manifested by natural cycles and rhythms, community development and structure, interactions between different kinds of organisms, geographic distributions, and population alterations. (Webster's, 3d ed) |
Bionomics,Ecologies |
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| D004812 |
Epidemiologic Methods |
Research techniques that focus on study designs and data gathering methods in human and animal populations. |
Epidemiologic Method,Epidemiological Methods,Methods, Epidemiologic,Epidemiological Method,Method, Epidemiologic,Method, Epidemiological,Methods, Epidemiological |
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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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| D012931 |
Social Environment |
The aggregate of social and cultural institutions, forms, patterns, and processes that influence the life of an individual or community. |
Social Context,Environment, Social,Social Ecology,Context, Social,Contexts, Social,Ecologies, Social,Ecology, Social,Environments, Social,Social Contexts,Social Ecologies,Social Environments |
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| D013598 |
Systems Theory |
Principles, models, and laws that apply to complex interrelationships and interdependencies of sets of linked components which form a functioning whole, a system. Any system may be composed of components which are systems in their own right (sub-systems), such as several organs within an individual organism. |
General Systems Theory,Queuing Theory,General Systems Theories,Queuing Theories,Systems Theories,Systems Theories, General,Systems Theory, General,Theories, General Systems,Theories, Queuing,Theories, Systems,Theory, General Systems,Theory, Queuing,Theory, Systems |
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