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A study by Indian Council of Medical Research has found that mixing the doses of Covishield and Covaxin was not only safe but also elicited a better immune response.
The study was conducted on 18 individuals who inadvertently received Covishield as the first jab and Covaxin as the second in Uttar Pradesh at a gap of six weeks.
The study found that the immunogenicity against Alpha, Beta and Delta variants was superior and the neutralising antibody response of the participants was also significantly higher compared to those who received both doses of the same vaccine.
The preprint study titled Serendipitous
