index case

English

Noun

index case (plural index cases)

  1. (epidemiology) The first documented case in a disease epidemic within a population or the first case of interest in an epidemiological investigation: the case of patient zero (the index patient).
    Hypernym: case
    Coordinate terms: index patient, patient zero, patient 0 (loosely synonymous)

Translations

See also

  • proband (in genetic investigations)