Michael Waters writing in Vox:
‘In terms of bacterial shedding, “there is no difference in bearded and non-bearded men,” said Carrie Kovarik, an associate professor of dermatology and medicine at the University of Pennsylvania. In her study of the phenomenon, Dr. Kovarik found that bearded people might actually carry fewer germs than their clean-shaven counterparts — perhaps because the “micro-trauma” that shaving inflicts on the skin opens up space for bacteria to congregate. But while Park’s lactic fearmongering might seem like the bygone panic of another era, the associations of beards with disease have proven strangely resilient….’