Disclaimer: This question is NOT about challenging the safety or efficacy of vaccines. It is only asking for tips on providing credible references that may show harmful effects of vaccination, if any.
In my French class, we were asked to debate an issue in current events. My topic is vaccines in children or adults.
The challenging part is that I was assigned to argue against vaccination, and I have to back up my arguments with credible sources (not blogs) that are in French. Hopefully some of you could point me towards some links to articles or research papers in French.