An index case:
A)refers to the first case where an infectious disease kills a susceptible host
B)is necessary for a common source outbreak
C)defines a propagated epidemic
D)refers to the first case of an infectious disease outbreak to be identified

Question

Quizplus · Accepted Answer

An index case refers to the first case of an infectious disease outbreak to be identified. This can help public health officials track and contain the spread of the disease.

An Index Case