Author Question: Which indicates virulence of an infectious agent? A) Immune response in the host B) Ability to ... (Read 76 times)

littleanan · **on:** Jul 8, 2018

Which indicates virulence of an infectious agent?

A) Immune response in the host
B) Ability to produce serious disease in the host
C) Power to invade and infect large numbers of people
D) Ability to produce disease in those infected with the agent

Question 2

Which of the following describes the reservoir in the chain of transmission?

A) The organism capable of producing infection or infectious disease
B) The environment in which a pathogen lives and multiplies
C) The means by which an infectious agent is transported from the host
D) The method whereby the infectious agent is transmitted from one host to another host

Natalie4ever · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

Ans: B
Virulence is the ability to produce serious disease in the host. Antigenicity is an immune response in the host. Infectivity is the power to invade and infect large numbers of people. Pathogenicity is the ability to produce disease in those infected with the agent.

Answer to Question 2

Ans: B
The reservoir is the environment in which a pathogen lives and multiplies. The infectious agent is an organism capable of producing infection or infectious disease. The portal of exit is the means by which an infectious agent is transported from the host. The mode of transmission is the method whereby the infectious agent is transmitted from one host to another host.