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Studies show that the Johnson & Johnson COVID-19 vaccine may not work well for Delta variants




Johnson & Johnson’s one-shot coronavirus vaccine is far less effective against delta variants than the original version of COVID-19. New research posted online Tuesday.

This study, which tested blood samples in the laboratory and has not yet been peer-reviewed, is for anyone who has undergone J & J.
+ 0.94%

The vaccine may need to receive a second shot as the variant continues to spread throughout the United States.

“The message we wanted to convey wasn’t that people shouldn’t be vaccinated with the J & J vaccine, but in the future it will be boosted by additional doses of J & J or boosters by Pfizer and Moderna. “I hope,” said research leader Nathaniel. Landau, a virologist at NYU’s Grossman School of Medicine, said Told the New York Times..

Earlier this month, New Jersey-based Johnson & Johnson Preliminary data showing that the vaccine was effective For delta mutants that were first present in India at least 8 months after inoculation.

But in May the British government Present research A single dose of AstraZeneca
+ 1.88%

A vaccine similar in structure to the Johnson & Johnson vaccine was only 33% effective against “symptomatological disorders” caused by delta variants, while two doses were effective against symptomatological disorders. There was a 60% effect.

J & J spokesman Seema Kumar told the Times that data from the latest study “does not speak of the full nature of immune protection.”

Last month, Dr. Rochelle Walensky, director of the Centers for Disease Control and Prevention (CDC) Speaking to NBC’s “Today” show “So far, there is good reason to believe that J & J works well for Delta variants, as opposed to other variants in the United States.”

Warrensky told lawmakers early Tuesday Delta variants currently account for 83% of all COVID-19 cases in the United States. At the same hearing, White House Chief of Staff Dr. Anthony Fauci said researchers were still assessing whether booster shots were needed to provide additional protection.

“When talking about boosters, I don’t want people to believe that it means vaccines aren’t effective,” Forch said. “They are very effective, we are talking about their durability.”

Early studies have shown mRNA vaccines produced by Moderna

And Pfizer
+ 2.24%

+ 1.04%

It is effective against delta variants and can provide protection for many years as long as the virus does not mutate far beyond its initial form.

Delta variants have been accused of increasing cases, hospitalizations, and deaths in recent weeks, but the numbers in all categories are still well below the peak of last winter’s surge and hospitalizations. And the overwhelming majority of deaths occur among unvaccinated people.

Nevertheless, health authorities in Los Angeles and Las Vegas have re-imposed mask obligations in indoor spaces, regardless of individual vaccination status.





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