Question

Which of the following is the most accurate definition of infection?
A)the presence of microorganisms in a particular location
B)the disruption of normal host functions by microorganisms
C)the survival and reproduction of microorganism in host
D)the appearance of symptoms in a host caused by microorganisms

Answer 1

C)the survival and reproduction of microorganism in host

Answer 2

Option (C) The Survival And Reproduction Of Microorganism In Host - This is the most accurate definition of infection.

• Infection is the invasion or multiplication of microorganisms in body tissues of the host which may or may not lead to clinical symptoms or local cell injury.
• Microorganisms that cause infection are called pathogens.
• For a pathogen to cause infection it is important to survive,colonize and multiply to compete for nutrients by disrupting normal defense system of the host.
• Measuring bacterial/viral load signifies the severity of infection it can also predict clinical outcomes of the treatment of infection.
• An infectious disease may or may not show clinical symptoms.

Hence, The Survival And Reproduction Of Microorganism In Host - This is the most accurate definition of infection.

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