A recent study from researchers at New York University found that the Johnson & Johnson vaccine may be less effective in battling COVID-19 variants than vaccines made by Pfizer-BioNTech or Moderna.

The results of the study were published by bioRxiv but have yet to be peer-reviewed or published in any scientific journal.

A registered nurse fills a syringe with the Johnson & Johnson COVID-19 vaccine at a pop up vaccination site in the Staten Island borough of New York.
(AP)

According to the study, the mRNA-based vaccines Pfizer and Moderna were 94 to 95% effective in preventing COVID-19 whereas the “adenoviral vector-based” Johnson & Johnson had a roughly 67% effective rate.

The study was led Nathaniel Landau, a virologist at New York University’s Grossman School of Medicine. Landau told The New York Times that the aim of the study wasn’t to dissuade people from getting the J&J vaccine.

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“[W]e hope that in the future, it will be boosted with either another dose of J&J or a boost with Pfizer or Moderna,” Landau said.

In a statement provided to Fox News, Johnson & Johnson cited previous studies which showed that a single-shot of its COVID-19 vaccine was 85% vaccine “at protecting against severe disease and provided complete protection against hospitalization and death.”

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The company said Landau’s study did not speak to the full nature of immune protection. It cited additional company data demonstrating that a Johnson & Johnson single-shot COVID-19 vaccine “generated strong, persistent activity against the rapidly spreading Delta variant and other highly prevalent SARS-CoV-2 viral variants.”