They say to not have sex for 6 weeks after having malaria. Hey, I have an idea: Why don't people just stop being sleazy and not sleep with other people they don't know! Wow! What a concept!
I know, sex is fun to talk about. It's fun to read, etc. It's not fun to do when you're playing Russian roulette with multiple sex partners. Ick! Why risk your life on 20 minutes of fun?