This is not a slippery slope. Enforcement of basic health standards does not lead logically to some kind of fascist state. If anything, we are currently all victims of the forces of anti-science and anti-civilization. I had Chicken Pox when I was young, and I survived, although my fever went to 105 degrees F. My sons both skipped that particular disease. Good for them! This is called progress, and it does not lead automatically to Brave New World. You need to read more Heinlein, and less Internet.