New Delhi: In the midst of increasing Covid-19 cases and new variants, Omicron, throughout the world, experts have warned that new variants and are said to be more contagious tend to replace Delta immediately as the dominant global variant, with viruses to be fit and have Reproductive excellence.
While Delta is still the most common variant on all continents except Africa, Omicron spread very quickly.
People who are fully vaccinated without travel history also tests Omicron’s positive, increasing doubts about the effectiveness of existing Covid-19 vaccines, discussions about the need for booster doses, and third wave speculation.
When Omicron is said to have mutations that might help escape from the defense of the body’s defense, antibodies, research has highlighted a greater role which is the second defense line of the immune system, cells, can play.
T cells, body weapons to cells infected with viruses, are sufficiently prepared by the vaccination they maintain against Omicron, separate studies have been found.
What is the T-cell? T cells are white blood cells that can remember past diseases, attack cells infected with viruses or assistance in the production of antibodies to fight it.
Unlike antibodies, T cells can target all protein surges of viruses, most of which remain similar even in omicron which is very mutated.
T cells are very effective for recognizing and attacking omicron variants, thus preventing most infections from advancing to critical illness, a study has shown.
‘T’ stands for Thymus, organs where the final stage of cell development occurs.
Takea Study Researchers from the Institute of Infectious Disease and Molecular Medicine of the University of Cape Town, who view patients, who have recovered from Covid or vaccinated, found that 70% to 80% of the T-cell response they considered to survive against Omicron.
“Although the Omicron mutation is extensive and reduces the vulnerability to neutralizing antibodies, the majority of T-cell response, caused by vaccination or natural infections, recognizes the variant,” the researchers said.
In other studies, researchers from the University of Erasmus in the Netherlands views 60 vaccinated health service workers and found that while their antibody response to omicron is lower or nothing compared to the beta and delta variants, the cell-t-response is mostly unchanged, “has the potential .
Balancing the lack of neutralization of antibodies in preventing or limiting Covid-19 severe.
“In the test tube experiment, researchers in South Africa expose copies of viruses to T cells from volunteers who have received a vaccine from Johnson & Johnson or Pfizer / Biontech or not vaccinated , but it has developed their own T cells after the initial version of Coronavirus infection.
“Although the Omicron mutation is extensive and reduces the vulnerability to neutralizing antibodies, the majority of T-cell response, caused by vaccination or natural infections, recognizes the variant,” the researchers said.
“The immunity of T cells preserved well to Omicron is likely to contribute to the protection of severe Covid-19,” which supports what is initially suspected by African doctors when most patients with omicron infections are not seriously ill, they say.