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A member asked:
If cold/flu transmit via "aerosolized", then why do some people not get infected when living with those afflicted in close quarters? are they immune?
A doctor has provided 1 answer
Immune resistant: Some people are have had prior exposure to the virus and may be immune. It is also possible that they have a high resistance. Other people may contract the same virus but display few symptoms.
Answered 12/31/2013
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