>Even if the city's water and sanitation systems are prepared for a flood of newcomers, Zion will face unique public health challenges owing to the fact that ev

>Even if the city's water and sanitation systems are prepared for a flood of newcomers, Zion will face unique public health challenges owing to the fact that everyone who was just freed from the Matrix has spent their entire life in an artificial amniotic sac, free from exposure to germs. Their immune systems are totally naive, placing them "at high risk of infectious disease," Kent State University disease epidemiologist Tara Smith told The Science of Fiction. Yes, trust a Smith to tell people that turning off the Matrix is a bad idea.