Puff the Mutant Dragon has an excellent takedown of Vaccines Have Chemicals alarmism: “Do vaccines contain toxic chemicals?” Puff considers mercury, ammonia, formaldehyde, thimerosol, aluminum, and hydrochloric acid.
In addition, Puff found a cartoon showing Jenner vaccinating people with cowpox. The results look like a humorous jab at vaccination fears.
But this was a serious editorial effort by the Anti-Vaccine Society, which objected to adding strange cow-derived substances into our precious bodily fluids. (Click on the picture to see a larger version.)
And yet this was a huge step up from previous inoculation procedures, which used a mild strain of smallpox with only 10% mortality to protect against the wild strains with 30% mortality.