Can a cough be interpreted as a sign of disgust?

This may sound like a bizarre if not absurd question but if a girl (or guy) coughs/clears their throat can it be read/interpreted as a sign of disgust or disapproval? Is this true or am I just being paranoid/over sensitive? I know this question makes me sound crazy but there are some instances where I can't see it just being that fact that the person has a cold, sore throat or is a smoker.
Can a cough be interpreted as a sign of disgust?
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