Ah yes, ad hominem attacks, the hallmark of scientific discussion. Fun fact: many drugs originally came from natural sources. So then scientists do research to determine what chemical(s) have medicinal properties. These chemicals can then be extracted or synthesized, allowing them to be given in precise doses. Let's say that an herb contains chemical A. Would it make more sense to take the safest, purest, and most effective dose of chemical A or to eat an herb salad? Medical patents are flawed, but this doesn't mean that we should ignore the science. Remember to vaccinate your kids.