It was announced yesterday that as part of a study, a third dose of the COVID vaccine is being administered to dozens of people in the United States. Yes, this tool has undergone some modifications to deal with variants of the coronavirus.
Why use the third dose of COVID vaccine?
Although they show that vaccines available in the United States provide good protection, they conducted research in this country and applied a third dose of the vaccine to people to fight against variants of COVID. Yes, considering the possibility that mutations will resist vaccines, pharmaceutical companies Moderna and Pfizer are the first to do so..
In this regard, Dr. Nadine Rouphael of Emory University stated that they must foresee the coronavirus, It is not clear that the protection provided by current vaccines cannot resist variants, so new vaccines are needed..
Concern for the Great Britain and South Africa variants
One of the variants that scientists worry about is a variant that originated in, for example, the United Kingdom, which is easier to spread, although as far as they know, it can be prevented with existing vaccines. Although the drugs in South Africa are the same, there are concerns that the drugs developed will not be compatible with those in South Africa..
Therefore, when necessary, the laboratory that produces the vaccine is looking for ways to fight the B.1.351 virus. Yes, both Pfizer and Moderna are testing experimental doses; for example, researchers from Emory and three other medical centers are accepting volunteers who have not been vaccinated against COVID.
On this point, Nadine Rouphael said that the goal is not only to know whether the third dose of Moderna can fight this new virus variant; They are also trying to find out whether two doses of the new vaccine are sufficient, or whether one of each dose is sufficient, or whether the two can be combined.
*Information from Associated Press