Can a Vaccine Cause Vasovagal Syncope?

Vasovagal syncope, a condition that results in fainting due to a sudden drop in heart rate and blood pressure, is a condition that has been linked to several of the standard vaccinations that are recommended by the U.S. Centers for Disease Control and Prevention (CDC). While only a very small percentage of vaccine recipients will experience vasovagal syncope as a result of their vaccinations, for those that do, the consequences can potentially be severe. Continue reading