But doctors hardly ever see chicken pox now, when I was a child everyone expected to have it. So vaccines clearly do protect a huge number of people.
Sorry, I'm not trying to pick a fight but I don't understand the logic that says that the herd immunity for chicken pox can have come from the vaccine (which is an unproven theory) but not from the heard immunity that has been built up from the unvaxed generation that did catch the disease (which is a proven theory). How does that work?

Our whole family except one caught whooping cough, despite being vaccinated in 2005, four months ago, the only one not to catch it was my 8 week old UNvaccinated son. We caught it from a family of 12 from playgroup, where one of the older kids had caught it from a vaccinated kid at school whose parents sent him to school even though they KNEW he was sick because they didn't want to take time off work. Ten in that family are vaccinated, two are not. Guess which two didn't catch it? The youngest two who weren't vaccinated. Trust vaccination if you like, but when I put this on top of the fact my husband caught typhoid from the typhoid vaccination, I wouldn't go near the things and would happily go to jail and hide my children underground to stop him from being vaccinated. It is not just you that gets angry about the vaccination debate. It is an emotive topic both ways and the suggestion that because other people believe in it I should subject my child to it makes me furious. People should be free to make choices for themselves regarding their own autonomy, it is a basic human right.

But there is one thing I agree with you absolutely, and that is it also makes me furious when people don't quarantine themselves or their kids when they are sick. If the parents of the kid who had whooping cough first had kept him at home, none of us might have caught it. There is no murky water there. That is a true risk of someone else's health, and even their own. Stay at home and get well.