Last month, the Centre announced that as part of its new immunisation policy, government experts will investigate different combinations of Covid-19 vaccine doses to see whether they may improve efficacy.from Top India News- News18.com https://www.news18.com/news/india/mixing-covid-vaccine-doses-could-improve-efficacy-against-mutations-need-more-data-to-confirm-dr-guleria-3895070.html

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