Winding chain of thought I had: Stopped by Akusai's posts on "Warrior School" -> Native Americans/Indians/whatever -> South Park episode featuring Indian casino owners taking over South Park's land in a reversal of the Greedy Evil White Guys vs. Spiritual Environmentalist Indians theme -> Indians infected the South Parkians with SARS via blankets that they rubbed Chinese people on (Don't look at me: I don't do their writing) -> Stan heals his dad with "folk remedies" -> alternative medicine -> Earlier scene: "Stan, I only have a 98% chance of surviving."
So, 2% mortality rate. In the small scale of one person, those odds aren't bad. I laughed until I thought about the large scale. Say a disease with that mortality rate infected 1,000,000 people. That'd be 20,000 dead. I'd say that merits a fair bit of caution.
One of the things that gets repeated quite often on the medically-themed blogs I go to is that most people can't assess risk, and I believe it. Imagine that there's a 1 in 1,000 chance that when you drive your car, you'll end up in a fatal crash. Would you still drive? I wouldn't: It may take a while, but over time, those odds would add up over time. Not in the gambler's fallacy way, but the more trips I plan on, the more times I'll exposed to that small chance.
So, any other probability discussion?