"In Australia, children are given medicine that can stop them getting some of the diseases that are killing your brothers and sisters and causing tremendous pain. Although a small number of people worry that there might be harmful side effects, most of the country gets this medicine. Do you think you have the right to get this medicine?"
I would say that that saying this was unethical - you might believe that, but that doesn't it make it the truth. You are providing promises you can't keep (vaccine isn't 100% effective and some will still die of the diseases they're vaccinated against - and sometimes even catch it from the vaccine because they still use live virus vaccines in the third world, i.e polio), providing one side of a very complicated and emotive issue. The fact there is so much debate in the Western world is enough to show you it is not a forgone conclusion that vaccination does more good than harm - both sides of the debate are theories in the process of proving themselves, both have evidence and scientific support - just because one theory is more socially acceptable and considered the status quo of thought and practice doesn't make one truth and the other fiction - for years common practice and thought was that the sun revolved around the Earth and the Earth was flat.

And the thing is they aren't really given a choice. People in third world countries who have access to vaccination are given the emotional blackmail and not given the opportunity to make an informed choice because they get told that same line, or just outright blackmailed along the lines of "we wont give you medical treatment while pregnant unless you promise to vaccinate your baby". There was a case recently where people in the Philippines stopped taking the DTaP vaccination because there was a lot of unexplained deaths that co-incedently happened within 48 hours of taking the vaccine. So naturally, people stopped taking their kids and themselves to be vaccinated. The vaccination safety group investigated it - not by actually going there and doing tests, interviewing people or looking at doctors reports but by looking at an old clinical study on the vaccine done in a Western country and then declared that it couldn't be the vaccine (that's proper WHO vaccine safety investigation for you - makes me feel real confident in their processes - NOT). So consequently they went around door knocking with the local police no less, accosting people in their homes, made them feel like they couldn't say no and injected them. That to me is very, very wrong.

I know some of you (you particularly RSAHD) foofooed my statement that I wouldn't be sure that huge push to vaccinate, especially in third world countries, wasn't about population control - perhaps you should look at this: http://zombietime.com/john_holdren/

This man makes US policy (which would include vaccine safety trials), and where they lead we usually follow. Call me cynical!