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WEDNESDAY, JULY 23, 2025
Omicron-specific booster may not be needed, US monkey study finds

Coronavirus chronicle

Rueters
05 February, 2022, 01:05 pm
Last modified: 05 February, 2022, 01:09 pm

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Omicron-specific booster may not be needed, US monkey study finds

Both Moderna Inc and BioNTech/Pfizer Inc have started testing Omicron-specific boosters of their vaccines in human clinical trials

Rueters
05 February, 2022, 01:05 pm
Last modified: 05 February, 2022, 01:09 pm
Photo :Collected
Photo :Collected

A study in monkeys pitting the current Moderna Inc Covid-19 booster against an Omicron-specific booster showed no significant differences in protection, suggesting an Omicron-specific booster may not be needed, US government researchers reported on Friday.

The study involved monkeys vaccinated with two doses of Moderna's vaccine who were dosed nine months later with either the conventional Moderna booster or one specifically targeting the Omicron variant.

The researchers tested various aspects of the animals' immune responses and exposed them to the virus. They found both boosters produced "comparable and significant increases in neutralizing antibody responses" against all of the variants of concern, including Omicron, according to the study, posted on bioRxiv ahead of peer review.

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Both Moderna Inc and BioNTech/Pfizer Inc have started testing Omicron-specific boosters of their vaccines in human clinical trials.

"This is very, very good news," Daniel Douek, a vaccine researcher at the National Institute of Allergy and Infectious Diseases who co-lead the study, said in a telephone interview.

"It means we don't need to radically redesign the vaccine to make it an Omicron vaccine."

Top News / World+Biz

omicron / US / monkey

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