“Whether you’re eating something and then touching the keyboard, or whether you’re licking the keyboard directly, it’s pretty much the same thing,” Tetro warned. “Saliva is going to get onto your fingers, and then that will get transferred over to your keyboard.”
Article source: https://www.huffingtonpost.co.uk/entry/germ-expert-gross-eating-keyboard_uk_6a901dfce4b0229baac5011d