Syncope After Vaccination-- United States, January 2005- July2007.

The article presents a report from the U.S. Centers of Disease Control and Prevention regarding the incidence of syncope or fainting following vaccination in the U.S. between January 2005 and July 2007. Findings reveal the number of postvaccination syncope events in females aged 11-18 years has increased since the licensing of vaccines to treat quadrivalent human papillomavirus and other vaccines commonly used to treat adolescents. The Advisory Committee on Immunization Practices recommends observing patients for 15 minutes after vaccination. Several syncope case studies involving girls who received vaccinations are presented.