In Atlanta, they conducted trials to “be ahead of the virus” and tested the efficacy of the first-generation vaccine
Dozens of people are accepting Third dose COVID-19 vaccine In the U.SThis time some minor adjustments were made to resist the mutant version of the virus.
Vaccines currently available in the United States provide good protection.But new research about experimental updates Moderna and Pfizer vaccines If viruses become resistant to today’s vaccines, they represent the first step towards alternatives.
It is not clear whether the protection provided by the vaccine will be weakened, making the new vaccine necessary, but, “in fact, we want COVID to become a cold.”
The virus is constantly evolving, and there is already a more easily spreading variant that was first discovered around the UK. Fortunately, it can be prevented by vaccines.
But some people are worried First-generation vaccine The other variant that appeared in South Africa was not as effective. All vaccine laboratories are looking for ways to fight the B.1.351 virus when necessary.Now they are Test the experimental dose From Moderna and Pfizer.
Emory University, in the suburbs Atlanta, Please participate in the first batch of vaccine research personnel to provide this update help.
Volunteer Cole Smith said he doesn’t have to think about it too much.
Researchers from Emory and three other medical centers are also recruiting Volunteers who have not been vaccinated Against COVID-19.
The goal is not only to determine whether Moderna’s third dose can combat new variants of the virus. It is also related to checking whether the two new doses of vaccine are sufficient. Or one of each vaccine. Or, if you can combine the two vaccines into one.
Authorized by the U.S. Food and Drug Administration Pfizer He and his partner German laboratory BioNTech conducted similar experiments on their vaccines.
This Moderna and Pfizer vaccinesLike most vaccines used around the world, they train the body to recognize the S protein in the coronavirus shell.
Mutations in viruses are common, but if too many mutations are generated, they can escape the immune system designed to detect intruders.
The good news is that updating Moderna and Pfizer vaccines is fairly easy.
The research released this month covered only a few hundred people, while the thousands used to test the original vaccine did not.