A medical professor has managed to avoid Covid throughout the entire pandemic, which he believes may be due to a simple nasal spray he uses every day.Professor Don Campbell, the Director of Northern Health's Hospital Without Walls program in Victoria, has sprayed a solution of the drug heparin into his nose every morning and night since May, 2020.Heparin is an anticoagulant that is used to prevent blood clotting, strokes and heart attacks, but Prof Campbell says when it's used via a nasal spray, it was perfectly safe and wasn't able to be absorbed by the body as a blood thinner.
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