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DeCS
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Descriptor English:
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Immunity, Herd
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Descriptor Spanish:
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Inmunidad Colectiva
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Descriptor Portuguese:
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Imunidade Coletiva
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Synonyms English:
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Herd Immunity
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Tree Number:
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G12.450.400
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Definition English:
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The non-susceptibility to infection of a large group of individuals in a population. A variety of factors can be responsible for herd immunity and this gives rise to the different definitions used in the literature. Most commonly, herd immunity refers to the case when, if most of the population is immune, infection of a single individual will not cause an epidemic. Also, in such immunized populations, susceptible individuals are not likely to become infected. Herd immunity can also refer to the case when unprotected individuals fail to contract a disease because the infecting organism has been banished from the population. |
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Indexing Annotation English:
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human & animal
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History Note English:
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2003
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Allowable Qualifiers English:
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Record Number:
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37641
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Unique Identifier:
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D032521
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Occurrence in VHL:
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Similar:
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DeCS CID-10 LILACS
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