I heard an "expert" on a radio program a few years ago claim that wearing a scarf, even loosely around the neck, helped to collect your exhaled viruses and reduce the inhaled viruses. The closer it came to covering the nose, the greater the protection.
WellIllBeJiggered t1_iz7hwi6 wrote
Reply to comment by 303elliott in A new study focuses on the crucial question of why people are more vulnerable to catching colds during the months of winter. The answer hinges on an evolved defense system, innate to the human nose, that is numbed by frigid temperatures. by BoredMamajamma
I heard an "expert" on a radio program a few years ago claim that wearing a scarf, even loosely around the neck, helped to collect your exhaled viruses and reduce the inhaled viruses. The closer it came to covering the nose, the greater the protection.
I'll try locate the source
E: radio program archives don't go back that far