This is the biological handprint of an 8-year-old after playing outside. The amount of bacteria may seem terrible at first, but that is because the photo basically amplifies what is on the kid’s hand. Bacteria would have to multiply at an unbelievable rate to be visible as colonies. Also note the mold on the palm of the hand across from the thumb. It appears to be producing an antibiotic that’s killing bacteria around it. So you’ll notice that the bacteria is steering clear!