evidence: Why were the parents so terrified of mercury? Once mercury enters the body, it damages the central nervous system. Even more toxic than fluorine, at microscopic levels, mercury damages the heart, kidneys, the brain, the lungs, and yes, the immune system. Short term symptoms of mercury poisoning are very similar to symptoms of extreme allergic responses to vaccinations, including shortness of breath, chills, chest pain, nausea, vomiting, diarrhea, fever, hypertension and severe headaches. Make no mistake: Thimerosal is 50 percent mercury, and there is NO amount that is safe to inject into humans, ever. [...] Here’s the ingredients list straight from the CDC website for three popular influenza vaccines that contain thimerosal (50% mercury content): Influenza (Flulaval) Trivalent & Quadrivalent: ovalbumin, formaldehyde, sodium deoxycholate, ?-tocopheryl hydrogen succinate, polysorbate 80, thimerosal (multi-dose vials).