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Current affairs - December 31st, 2021 from The Hindu.

- Essay Corona

The National Technical Advisory Group on Immunisation (NTAGI) and other authorities sat to discuss the Omicron variant this week. The decision will be based on a definitive study by the University of Southampton in the United Kingdom on booster doses called the COV-BOOST, and the Christian Medical College, Vellore trial of evaluating a booster by combinations of Covaxin and Covishield as third doses, which may lead to the conclusion of the study as the combinations are said to boost antibody levels. Any decision regarding the COVID discussion to set a set of clear-cut guidelines on vaccine recommendation would be announced before January 10, 2022.