Most parents today have never seen a case of diphtheria, measles, or other once-common diseases now preventable by vaccines. As a result, some parents wonder why their children must receive shots for diseases that don't seem to exist. Myths and misinformation about vaccine safety abound and can confuse parents who are trying to make sound decisions about their children's health care.
Vaccination is a common, memorable event, and association of events in time often signals cause and effect. While some of the sickness or reactions that follow vaccination may be caused by the vaccine, many are unrelated events that occur by coincidence after vaccination. Therefore, the scientific research that attempts to distinguish true vaccine side effects from unrelated, chance occurances is important. More ...
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