Question

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which describes the correct order of events in the spread of disease?
pathogens → exposure → sickness
sickness → pathogens → exposure
exposure → sickness → transmission
transmission → exposure → sickness

Explanation:

For disease spread, pathogens must first be transmitted to a new host (transmission). Then the host is exposed to these pathogens. After exposure, if the pathogens successfully infect and multiply in the host, sickness occurs.

Answer:

transmission → exposure → sickness