This is what happens when epidemiology meets Avatar: The Last Airbender fandom. The four infection types (waterborne, foodborne, vectorborne, and airborne) are reimagined as elemental nations, complete with dramatic backstory. In reality, these transmission routes are how pathogens play their sick little games of "find the human." Vectorborne diseases (like malaria) require a middleman—usually a mosquito that didn't bother to get consent before becoming a disease taxi. Meanwhile, airborne pathogens are just showing off their efficient distribution system. The punchline about antibiotics is particularly delicious because it completely destroys the epic narrative with mundane medical reality. Spoiler alert: penicillin beats epic destiny every time.