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The Pre-Travel Consultation and Best Practices for Yellow Fever Vaccination Providers and Clinics


Main Menu Best Practices Reporting Adverse Events

Reporting Adverse Events

When administering the vaccine, it is good practice to ensure that another adult is on the premises who can call 9-1-1 in the event of an emergency involving a serious adverse event. As mentioned in Lesson 1, epinephrine and equipment for maintaining an airway should be available for immediate use, if necessary.


The US Department of Health and Human Services developed the Vaccine Adverse Events Reporting System (VAERS) to accept all reports of suspected adverse events after vaccine administration. Reporting all clinically significant adverse events occurring after vaccination is strongly encouraged. Vaccine recipients, parents, guardians, and health care providers can report adverse events to VAERS. Reporting forms can be obtained by calling 1-800-822-7967, or by visiting the VAERS website. Health care providers should also report these events to the vaccine manufacturer. For YF-VAX®, contact Sanofi Pasteur, Discovery Drive, Swiftwater, Pennsylvania 18370, or call 1-800-822- 2463.


CDC can also provide consultation regarding reports of suspected serious adverse events. To discuss a serious adverse event, call 1-800-CDC-INFO.

Where to find additional guidance on serious adverse events

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