Announcing Research 101 | UMR Answers Common Questions About NIH Research in this New Fact Sheet Series
Why Invest in NIH Research? | UMR Offers Fact Sheets Explaining Why Congress Must #keepNIHstrong
Read UMR's Statement on the House Appropriations Committee's Passage of FY23 Labor-HHS Funding Bill
NIH's Role In Sustaining the U.S. Economy | 2022 Update Now Available

A participant in the NIH 2019-2020 Medical Research Scholars Program.

Photo Credit: National Institutes of Health

About This Photo

WashU study: Antibodies from Pfizer’s COVID vaccine effective against delta variant

Despite causing a surge in infections this summer that has resulted in thousands of hospitalizations and deaths, the delta variant of the virus that causes COVID-19 is not particularly good at evading the antibodies generated by vaccination, according to a study by researchers at Washington University School of Medicine in St. Louis. The researchers analyzed a panel of antibodies generated by people in response to the Pfizer COVID-19 vaccine and found that delta was unable to evade all but one of the antibodies they tested. Other variants of concern, such as beta, avoided recognition and neutralization by several of the antibodies.

The findings, published Aug. 16 in the journal Immunity, help explain why vaccinated people have largely escaped the worst of the delta surge.