A bit surprisingly, many people continue to state that vaccines cause autism and many other health problems, including immune system deficiencies. Just a few days ago, in fact, I stumbled across a Portuguese page on FB where a bunch of irrational people held such views and defended them with religious fervor in spite of my arguments based on facts and Science. Their cult behavior was so unreasonable that I had to block quite a few people. I do not give a shit about these people, but I do worry a lot about uninformed innocents and children who could be negatively impacted by their willing ignorance and stupidity.