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Johnson & Johnson's COVID Vaccine Is Effective Against The Delta Variant, Studies Find

The Johnson & Johnson COVID-19 vaccine continued to be effective over the eight months it was studied in recipients, the company said.
David Zalubowski
/
AP
The Johnson & Johnson COVID-19 vaccine continued to be effective over the eight months it was studied in recipients, the company said.

Johnson & Johnson's COVID-19 vaccine offers strong protection against the delta variant of the coronavirus, the company said Thursday. And the protection appears to last at least eight months.

The results follow similar announcements about the Pfizer and Moderna vaccines in the fight against the fast-spreading delta strain.

In one small laboratory study, researchers observed what happened to the blood of eight vaccinated individuals when it was exposed to the delta variant. And they found that antibodies and immune system cells in the blood were highly effective at neutralizing the virus.

A second study involving 20 patients at Beth Israel Deaconess Medical Center in Boston showed similar results.

Johnson & Johnson also noted the vaccine continued to be effective over the eight months it was studied in recipients. Dr. Mathai Mammen, the company's global head of research and development, said the vaccine elicits a "strong neutralizing antibody response that does not wane; rather, we observe an improvement over time."

Both studies have been submitted but not yet published in a peer-reviewed publication.

Copyright 2022 NPR. To see more, visit https://www.npr.org.

Barbara Campbell

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The independent journalism and non-commercial programming you rely on every day is in danger.

If you’re reading this, you believe in trusted journalism and in learning without paywalls. You value access to educational content kids love and enriching cultural programming.

Now all of that is at risk.

Federal funding for public media is under threat and if it goes, the impact to our communities will be devastating.

Together, we can defend it. It’s time to protect what matters.

Your voice has protected public media before. Now, it’s needed again. Learn how you can protect the news and programming you depend on.

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