Mercury in Vaccines Isn't Toxic

Many vaccines contain a preservative called thimerosal. Its purpose is to prevent contamination from harmful microbes. It also is about 50 percent mercury. Mercury is infamous for causing “mad hatters’ disease,” a form of mercury poisoning that causes psychosis. It also causes a myriad of other harmful effects, including depression, anxiety, vision problems, and other neurological issues. Since mercury is in vaccines, some people assume that vaccines can poison people too.