One of our staff gave a dose of Dengvaxia in error to a child who did not have proof of previous DENV infection. What do we do now?

The parent/caregiver should be notified immediately, warned of the possible increased risk for hospitalization and severe dengue if the person develops a subsequent natural dengue infection, and the need to seek immediate medical attention if warning signs of severe dengue develop.

Clinic staff should review the incident and ensure that staff members responsible for vaccination have had sufficient training and protocols are in place to prevent such errors.

The use of tools, such as the CDC prevaccination checklist, helps prevent such errors: (www.cdc.gov/dengue/resources/DVBD_FS_Vaccination_Checklist-508.pdf).