Which of the following best describes an index case?
A) A case used for reference
B) A similar case history
C) A typical case
D) The first reported case

Name: Which of the following best describes an index case? A) A case used for reference B) A similar case history C) A typical case D) The first reported case
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An index case, also known as a primary case, is the first reported or identified case in a disease outbreak or epidemic. It is used to help track and understand the spread of the disease.

Which of the Following Best Describes an Index Case