How to fight disease without vaccinations?

Dear friends,

I'd like to hear well backed-up opinions on

- what disease there is that's dangerous to us
- how is vaccination supposed to help fight it
- what happens if one refuses vaccinations
- how to fight disease without vaccinations.

If the case is that there are diseases out there that are potentially lethal, how are we supposed to be safe from them? This information can't be found anywhere, only rant on how poisonous jabs are (which I do agree with, of course).

Is the case that there simply is no means to fight problems, and having taken jabs I'm only more at risk to develop even more severe problems but no real immunity? Is the case that travelling to a country with a foreign virus base I am not accustomed to is simply dangerous, and should be avoided, and a solution to this is yet to be discovered?

I have been a raw vegan on and off for nearly a year. I've gone through four juice fasts and some detoxes, so I see myself as sufficiently fit to fight off minuscle illnesses.

Thanks in advance for your sensible approaches!