As vaccine-preventable diseases have become less common, the vaccines that prevent them have come under scrutiny. While life expectancy has increased and countries like the United States have stopped hearing about deaths caused by diseases like measles and rubella, other parts of the world still struggle to control them. Indeed, in parts of Africa, some families wait to name their children until the threat of measles has passed.
Unfortunately, rather than celebrating the successes of vaccines, some have started to wonder whether vaccines could be causing other conditions, such as asthma, autism, arthritis, diabetes and multiple sclerosis. In addition, conditions such as shaken baby syndrome, mad-cow disease and SIDS have also been blamed on vaccines. However, every time questions have been asked, studies have been completed and have not found vaccines to be causally associated with these conditions.