Naah, naah, you have cooties and I don’t!

Actually, it turns out most of your cooties won’t grow in me. I’m catching up on podcasts that are a couple of months old, and a Sci Friday story about our skin bacteria caught my attention. Seems that even on our own bodies the bacteria from area to area varies greatly, and the strains growing on you might not grow on me at all. So you can kiss the girls without getting (many) cooties from her!