Pfizer Says Vaccine Efficacy Waning over Time: Pushes Booster Shots

Pfizer prefaced its upcoming presentation to the Food and Drug Administration (FDA) to discuss its application for Chinese coronavirus booster shots by asserting data shows vaccine efficacy wanes over time.

Pfizer is expected to present the information to the FDA for its scheduled meeting on Friday, September 17.

According to the presentation, “Real-world data from Israel and the United States suggest that rates of breakthrough infections are rising faster in individuals who were vaccinated earlier.”

Dr. Anthony Fauci said Americans may very well require booster shots to maintain protection against the coronavirus. https://t.co/wrDhcZ0DXC

— Breitbart News (@BreitbartNews) April 13, 2021

Further, Pfizer attributes this primarily to “waning of vaccine immune responses over time,” not necessarily a specific variant.

Researchers from Israel and United Kingdom are expected to speak at the presentation.

Israel officials, specifically, will “present data from that country on booster protection against infections and severe disease, according to the agenda, and a professor of medical statistics from the University of Bristol will present data on real-world vaccine effectiveness,” according to Bloomberg.

Hannah Bleau