The Omicron variant of Corona continues to wreak havoc in many countries of the world including India since the beginning of this year. Studies have found that Omicron’s sub-variants are more likely to cause infection by easily evading vaccination or by bypassing the immunity built up by prior infection. Experts believe that since the corona vaccines present around the world have been prepared by targeting the original variant of the virus. Now new variants are emerging in the corona virus with many mutations, due to which the risk of infection remains constant even after vaccination. Keeping this in mind, the US FDA has approved a booster shot of the vaccine specifically targeting Omicron.

According to media reports, Americans will start getting this “updated booster” shot from the beginning of next week. It is believed that this will help in controlling the risk of ongoing infection due to Omicron sub-variants to a great extent.

However, scientists have raised questions about the approval of this vaccine because there is no data available for testing it on humans yet. Meanwhile, India has also talked about launching such an updated booster vaccine soon. Let’s know about this vaccine.

Know about the updated booster vaccine

The Food and Drug Administration (FDA) said in a statement that two updated booster vaccines manufactured by Pfizer-BioNtech and Moderna have been approved. Both are “bivalent” vaccines, meaning they contain two mRNA components of the SARS-CoV-2 virus. The first is the original strain and the second is identical to Omicron’s sub-variants BA.4 and BA.5. Giving this booster shot is expected to help reduce the increased risk due to Omicron.

The havoc of BA.4 and BA.5

Significantly, due to Omicron’s BA.4 and BA.5 sub-variants, cases of infection are currently increasing in many other countries of the world including India and America. FDA vaccine regulator Dr Peter Marks said that the goal of this booster vaccine shot is not only to control the infection by targeting a specific variant of the corona, but we hope that through these vaccines we will be protected from infection for a long time. You can get the benefit of keeping it.

Questions raised on the approval of the vaccine

However, questions have started to arise on how effective this booster shot will be. science For the BA.4/BA.5 booster shot, companies have so far submitted only animal-based data, according to a report published in . Data has not been shared about how effective it will be on humans. According to the report, the clinical trial for this is to start from next month. It will also likely test the antibody levels of the recipients, the efficacy of the vaccine against infection or serious disease, and how effective these vaccines are in protecting humans from particular variants is still a big question.

The question is also that on what basis have these vaccines been approved without a complete investigation report?

When will such a vaccine be available in India?

Adar Poonawalla, CEO, Serum Institute of India has also made a big announcement about a vaccine targeting Omicron variants in this manner in India. On Thursday, he told during an event that we are working on a plan to launch a specific vaccine targeting Omicron within the next six months. There are good data against Omicron for the Kovavax vaccine. Although the vaccines so far are effective in protecting against serious diseases, we are trying to launch an Omicron specific vaccine.

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sources and references

Omicron booster shots are coming—with lots of questions

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