bn:00046420n
Noun Concept
Categories: Epidemiology, Articles with short description, Biological hazards
EN
index case  index patient  patient 0  patient O  Patient one
EN
The earliest documented case of a disease that is included in an epidemiological study WordNet 3.0
English:
medicine
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EN
The earliest documented case of a disease that is included in an epidemiological study WordNet 3.0 & Open English WordNet
The index case or patient zero is the first documented patient in a disease epidemic within a population, or the first documented patient included in an epidemiological study. Wikipedia
The first documented patient in a disease epidemic within a population or the first case of interest in an epidemiological investigation; the case of patient zero. Wiktionary
First documented patient in a disease epidemic. Wiktionary (translation)
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