Tweaked COVID vaccines in testing aim to fend off variants

New versions of COVID-19 vaccines are now being tested in case they ever are needed to protect against mutated versions of the virus. New versions of COVID-19 vaccines are now being tested in case they ever are needed to protect against mutated versions of the virus. |  Photo: Moderna

LAURAN NEERGAARD
Created: April 12, 2021 11:29 AM

New versions of COVID-19 vaccines are now being tested in case they ever are needed to protect against mutated versions of the virus.

The vaccines being rolled out across the U.S. offer strong protection, even against some of the variants becoming more common.

But viruses constantly evolve, and the world is in a race to vaccinate millions and tamp down the coronavirus before even more mutants emerge.

Researchers, hoping to stay ahead of these changes, are seeing whether tweaked versions of vaccines made by Moderna and Pfizer can protect against one worrisome type that emerged in South Africa.

Credits

LAURAN NEERGAARD

Copyright 2021 The Associated Press. All rights reserved.

Fire destroys Cook trailer home and garage

Friends and family embrace Minnesota Fishing Opener

Brooklyn Center City Council approves police reform resolution

UPDATE: 50-car train derails in Albert Lea; 2 cars leaking hydrochloric acid

College of St. Scholastica hosted a modified, in-person spring commencement ceremony

Lawsuit alleges sexual assault by hockey coach, cover-up