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All pathogens can be categorized by the following:

Entering the host
Colonizing within the host
Damaging the tissues in the host
Resisting the defence mechanism

Transmission of Pathogens

In order for pathogens to cause harm, it must first enter the host.
There are 3 main ways of entering…

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The pathogen can damage the host cells by the following

a) Breaking down the cell membrane and releasing the
nutrients inside them
b) Taking up the nutrients instead of the cell leading to the cell
to become starved
c) Replicating inside the cell to the point where the cell…


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