The time interval between invasion by an infectious agent and the first appearance of signs and symptoms of the disease is called:
A) Communicable period
B) Incubation period
C) Infectiousness
D) Pathologic reaction

Question

Quizplus · Accepted Answer

The time interval described in the question is the incubation period, which refers to the time between exposure to an infectious agent and the first appearance of clinical symptoms.

A) Communicable period refers to the time during which an infected person can transmit the infection to others. 
C) Infectiousness refers to the ability of an infectious agent to cause infection or disease. 
D) Pathologic reaction refers to the way in which the body responds to a disease or infection, such as inflammation, tissue damage, or immune response.

The Time Interval Between Invasion by an Infectious Agent and the First