Changes to Quadracel and Pentacel production lead to VEC materials information update

Previously, the polio vaccine component of Quadracel® and Pentacel® was grown in fetal cells. However, in December 2019, Sanofi received FDA approval for a revised production process that removes the use of fetal cells for polio vaccine growth. The revised process uses monkey kidney cells for growth of the polio vaccine component.

As a result, the Vaccine Education Center (VEC) updated our information related to vaccines and fetal cells to remove mentions of these vaccines in the lists of vaccines grown in fetal cells. Changes included:

Recent interviews with Dr. Offit

While Dr. Offit has been busy giving a variety of interviews, a couple of recent conversations may be of particular interest:

Materials in this section are updated as new information and vaccines become available. The Vaccine Education Center staff regularly reviews materials for accuracy.

You should not consider the information in this site to be specific, professional medical advice for your personal health or for your family's personal health. You should not use it to replace any relationship with a physician or other qualified healthcare professional. For medical concerns, including decisions about vaccinations, medications and other treatments, you should always consult your physician or, in serious cases, seek immediate assistance from emergency personnel.