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Question

Which of the following statement(s) is/are correct?
I. A pathogen or an infectious agent is a microorganism, such as a virus, bacterium, fungus that causes disease in its host.
II. These pathogens multiply in our body and interfere with the normal vital activities, resulting in morphological and functional damage.

A
Only I
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B
Only II
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C
Both I and II
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D
None of these
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Solution

The correct option is C Both I and II
Pathogens are microorganisms that have the potential to cause infectious diseases. Viruses, bacteria, protozoans and fungi are all potential pathogens.

Pathogens invades the body through the openings, which uses the host body’s resources, multiplies and causes severe infectious disease. Most pathogens are able to avoid the immune responses of the host, triggering associated illnesses. The pathogen then utilizes the host body’s resources to replicate before exiting and spreading to a new host (like a virus). During the process of multiplying themselves (pathogens) damages the body cells, interfere with their normal activities.

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