index case

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Definitions from WordNet

Noun index case has 1 sense

index case - the earliest documented case of a disease that is included in an epidemiological study
--₁ is a kind of patient

Definitions from the Web

Term: Index Case

Definition: The first case or individual affected by a disease or condition that leads to its spread to others.

Example sentences:

The index case of the COVID-19 outbreak in the city was traced back to a traveler from another country.
The health officials are working tirelessly to identify the index case of the recent malaria outbreak.
Once the index case is identified, it becomes crucial to isolate and treat them to prevent further transmission.

Related products:
Epidemiology Books on Amazon

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