If there's anything worse than meeting a dangerous alien in space, it's having sex with an alien and getting a dangerous disease. As Mercury de Sade once said, the main point of meeting aliens is to find their holes so you can fuck them. That may be true, but galactic VD isn't the only disease danger out there in the world beyond our world. There are all kinds of nasty scifi bugs you can pick up in space, the future, and other dimensions. And they don't just come from sex. Want to prep your inoculation kit? Check out our guide to exo-pathology.
Diseases from space
Of course the classic space disease hits earth in The Andromeda Strain, an early-1970s novel written by a then-unknown medical doctor called Michael Crichton. He was so obsessed with making his deadly disease from a meteor into the stuff of hard science fiction that he actually included footnotes to medical journals and other sources to prove that this scenario could happen. A miniseries based on the book is about to hit the airwaves soon, and it's pretty fun and gross so keep your eyes peeled for it. One of the coolest diseases from space was created by award-winning author Octavia Butler in the novel Clay's Ark, about a guy named Clay who returns from space infected with a strange virus. As the virus spreads, a percentage of the population begins to return to a semi-animalistic state, growing a four-legged morphology and being led by instinct to form patriarchal packs of human-hunting creatures. It's a really fascinating look at what would happen if people could not fight their "animalistic" urges to kill and fuck, and had to give into those urges even as they knew they weren't in their best interests. On a lighter note, there is the excellent space disease that comes in a meterorite in one of the short stories in 1980s classic movie Creepshow. Stephen King in a rare movie acting role plays a dim-witted guy in Maine who touches the meterorite and slowly turns into a giant plant creature. Cannot be missed. And then there's the disease that hits the space station in the movie version of Doom, which turns people into creatures who can shoot their tongues. You really don't need to know much more than that, honestly.