Wow. It is utterly amazing that we understand the universe in such rich detail. This video by Nature is just fantastically stunning.
Worried about potential pathogens in food? The short video below by Nature may assuage some of your concerns, but food safety and personal hygienic practices are of course always important lines of defense.
A beautiful summary of the sophistication of immune system elements in part of the digestive tract, this visual depiction of scientific understanding really ups my appreciation for the amazing processes occurring in the human body. The soundtrack also contributes an epic feel to the whole cellular drama.