Concerned citizens have questioned the use of and the safety of vaccines since the advent of the first vaccine against smallpox back in 1796 by Edward Jenner. Political cartoons of the era reflect concerns that people who received the cow pox inoculation would grow horns, tails and other attributes of cows.
In recent years vaccines have been targeted as the cause of the increase in autism rates throughout the world. Hypothesis were generated suggesting that either combined Measles, Mumps, Rubella (MMR) vaccine or the ingredient thimerosal, found in some vaccines could be the cause of autism or other neurodevelopmental disorders.
Fortunately, the worldwide scientific community, the U.S. government and partner agencies take such accusations very seriously, investigating potential vaccine safety issues in great depth by conducting rigorous studies to determine the feasibility of harm. ECBT's Vaccinate Your Family website provides details on peer-reviewed articles and studies by medical experts who adhere to rigorous scientific standards when researching possible connections between vaccines and long term ailments.
Unfortunately, there is a great deal of misinformation disseminated regarding the safety of vaccines which can be countered using a variety of resources.