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Immunity, Herd MeSH Descriptor Data 2022


MeSH Heading
Immunity, Herd
Tree Number(s)
G12.450.400
Unique ID
D032521
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D032521
Annotation
human & animal
Scope Note
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.
Entry Term(s)
Herd Immunity
Public MeSH Note
2003
History Note
2003
Date Established
2003/01/01
Date of Entry
2002/07/03
Revision Date
2013/07/08
Immunity, Herd Preferred
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