Do we actually know how effective this is, or is it just something that everyone says you should do because it is common knowledge"?
"Common knowledge" has been proven wrong many times in the past - for example, we don't try to cure diseases by blood letting any more. It takes carefully designed experiments to determine the truth of these things.
Note that there are zillions of viruses in a cough, and it doesn't take too many to cause a disease. Obviously, covering your mouth while coughing only stops a fraction of these viruses from becoming airborne.
Does anyone know of a study considering the efficacy of covering your mouth to prevent coughs from becoming a disease transmission vector?
2006-10-22
06:38:15
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9 answers
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asked by
Tom D
4
in
Medicine