I never said its impossible. Its just very rare.

I've been eating raw fish since i was 8 years old, and I've been eating raw beef since I was 12 years old. Not until I was 17 did I start eating whole pieces of steak raw on a daily basis. Yes, since I was 17, I've been eating raw steak ALMOST every single day. Not once, in my entire life have I gotten sick, let alone food poisoning.

If its good quality and fresh, you have little reason to worry. Proof? My statement and I above. I've EVEN began to eat pork medium rare-rare. I began this new trend starting a year ago, and once again. Never once have I gotten sick from that.

There are a few times to where I've undercooked chicken and decided to eat it (slightly pink in the middle, slightly). I'm alive. And amazingly enough I didn't die from salmonella.

There are many people out there like me who eat steak and fish raw, and even pork medium rare who have never once had an issue with parasites or even food poisoning.

people have very little reason to fear eating raw fish or raw beef. Unless its not good quality and it isn't fresh.