word

Herd Immunity (Veterinary)

herd ih-MYOO-nih-tee

/hɜːrd ɪˈmjuːnɪtiː/

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Syllable breakdown

herdimmunity

Dictionary meaning

A form of indirect protection in an animal population where a sufficient proportion of individuals have become immune to an infection (through vaccination or prior exposure), thereby reducing the likelihood of infection for individuals who lack immunity.

Examples

Achieving herd immunity in the cattle herd required vaccinating at least 85% of the animals.
Herd immunity thresholds vary significantly by pathogen and species.

Synonyms: population immunity, community immunity

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