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Pfizer's Covid-19 vaccine trial data shows long-term efficacy in adolescents

By Reuters   November 22, 2021 | 06:06 pm PT Google Get VnExpress first in Google Search info See more of the news you trust. Make VnExpress a preferred source to prioritise our updates in your Google search results
Pfizer's Covid-19 vaccine trial data shows long-term efficacy in adolescents
A high-school boy receives a shot of Pfizer Covid-19 vaccine in HCMC, October 2021. Photo by VnExpress/Thanh Nguyen
Pfizer Inc said on Monday its Covid-19 vaccine provided strong long-term protection against the virus in a late-stage study conducted among adolescents aged 12 to 15 years.

A two-dose series of the vaccine was 100 percent effective against Covid-19, measured seven days through over four months after the second dose, the company said.

The long-term data will support planned submissions for full-regulatory approval of the vaccine in the age group in the United States and worldwide.

Pfizer and BioNTech will seek clearance for a 30 micrograms dose of the vaccine for those aged 12 and above.

The vaccine was authorized for emergency use in people aged 12-15 years by the U.S. Food & Drug Administration in May, and granted full approval for use in people aged 16 and above in August.

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