[Small rant] There are huge economical incentives to scold those who question medicines with high amounts of side effects. Do people really believe that big pharma doesn't account for a good share of the astroturfers online?
To give one example:
In Sweden a vaccine for the pigflue caused narcolepsy in completely healthy young individuals. [End rant]
The problem here is not truth or how it's used to effect but foremost the missinformation that is blocking out all traces of it.
Truth helps any discussion and creates trust - which the vast majority of societies are built on (or used to be).
And just to be clear, narcolepsy wasn't caused by the "additives" in the vaccine like anti-vaxxers claim. Narcolepsy was caused by the pig flu protein itself.
Thus, if there had been no pig flu vaccinations and people had been exposed to the real thing, a number of them would also have got the narcolepsy, in addition to the nasty symptoms of the pig flu itself.
We have more scientific evidence for vaccines than we do for gravity, and frankly I am disappointed in the quality of the argumentation here. What percentage of patients developed narcolepsy? Was the study powered for that causal conclusion? Was the methodology sound?
No idea, you're just spewing anecdata.
Astroturfing is absolutely a problem in online discourse but so is wilful ignorance.
Vaccines are, by comparison, not big money makers.
As there seem to be astroturfers out and those who require sources (which are not equated but noted to be a seperated quality) I'll ad some information; The vaccine was Pandemrix and the study was conducted by läkemedelsverket (basically a national study organ of medicine).
Pigflue itself would cause narcolepsy but the vaccine would increase the risk threefold.