What Is the Most Accurate Definition of the Incubation Period

question 7

Multiple Choice

What is the most accurate definition of the incubation period (of an infectious disease) ?

• A) The time of onset of clinical illness or the onset of recognizable symptoms
• B) The interval from receipt of infection to the time of onset of clinical illness (the onset of recognizable symptoms)
• C) The time of invasion by an infectious agent
• D) The time between initiation of infection and first shedding or excretion of the agent
• E) The period between exposure and the onset of infectiousness