I'm pretty sure I know (of) one of the 1-9 who died from the MMR vaccine. That doesn't mean I'd ever suggest anyone not get it. There are plenty of anecdotal cases of side effects; but if you take the vaccines away, the disease effects are of an order of magnitude 1000 times worse or 1000 times more prevalent.... and we only avoid infection through herd immunity. Sure, 1% or 5% of the herd refusing vaccination has little effect; but why should everyone else have to bear the burden of their collective immunity? What makes them "superior" to enjoy that "right" which is only available because everyone else is providing them collective immunity? If enough people opt out, then the ancient diseases start to return, and the anti-vax argument becomes invalid... so it's really in this slim margin of superiority [it's their right not to vaccinate -because they probably won't get sick- only because it's not everyone else's right not to vaccinate] that there even is an argument.

Typhoid mortality even today is still around 1-2%. It's not in the U.S. only because of our treated water conditions. Going to South America without immunity to that seems like a bad idea to me. For perspective, the mortality rate based on registered motorcycles is 6 deaths per 10,000 motorcycles/year; and people consider motorcycles to be "risky". Now it's impossible to say "would she have gotten typhoid without the vaccine" because we lack a crystal ball, much even less "would she have died". The latter especially is unlikely; but in the balance, a part of the population experiencing side effects is better than a much larger part of the population experiencing devestating side effects of the respective disease(s), including several deaths.