Johnson & Johnson’s Covid-19 Vaccine Is 73.6% Effective, According To New Real-World Study

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By John Bonifield, CNNNovember 2, 2021 astatine 8:20 pm

(CNN) — Data from a real-world survey assessing Johnson & Johnson’s Covid-19 vaccine finds it is 73.6% effective, according to probe published Tuesday successful the diary JAMA Network Open.

The survey evaluated patients wrong the Mayo Clinic Health System betwixt February and July of this year. The researchers followed astir 9,000 patients vaccinated with the J&J vaccine and astir 89,000 patients who were unvaccinated. They looked specifically to spot however galore of them tested affirmative for Covid-19.

Among the 8,889 vaccinated patients, 60 had a affirmative PCR test. Among the 88,898 unvaccinated patients, 2,236 had a affirmative PCR test. The researchers concluded the vaccine was 73.6% effectual and led to a 3.73-fold simplification successful coronavirus infections. The uncovering is akin to objective proceedings information that recovered the vaccine was 66.9% effectual against mean to terrible Covid-19.

The caller probe showed a simplification successful terrible cases, particularly hospitalizations, but excessively fewer radical got Covid-19 among the vaccinated radical to gully a beardown decision arsenic to however good the vaccine prevented deaths.

In an accompanying commentary, Dr. Mohammad Sajadi of the Institute of Human Virology astatine the University of Maryland School of Medicine, argued that the findings are portion of a increasing assemblage of enactment that suggests “room for improvement” with the J&J vaccine.

“What is becoming much wide with clip is that the single-dose regimen of the [Johnsons & Johnson Covid-19] vaccine seems to beryllium inferior to the mRNA vaccines successful presumption of [vaccine effectiveness],” Sajadi wrote, comparing the J&J vaccine to a antithetic benignant of Covid-19 vaccine that is made by Pfizer/BioNTech and Moderna.

Sajadi noted that the aforesaid radical of researchers who conducted this latest J&J survey had antecedently looked astatine vaccine effectiveness of the Pfizer and Moderna Covid-19 vaccines, which had “significantly higher” efficacy. In that study, the real-world effectivness of the Pfizer vaccine was 86.1%. For Moderna it was 93.3%.

In September, a head-to-head survey of each 3 vaccines recovered the Moderna vaccine is somewhat much effectual than Pfizer’s successful real-life usage successful keeping radical retired of the hospital.

Moderna’s vaccine provided 93% extortion against hospitalization, and Pfizer’s was 88% effective.

Sajadi said betterment of the J&J vaccine whitethorn travel successful a 2nd dose oregon a booster of an mRNA Covid-19 vaccine.

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