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Will mixing of Covishield, Covaxin work? trial results by February-end

Conducted by Christian Medical College (CMC), Vellore, the study will also test the effectiveness of heterologous vaccine doses against new Covid variants.

Published: 16th February 2022 02:49 AM  |   Last Updated: 16th February 2022 08:12 AM   |  A+A-

Covishield and Covaxin (Image for Representational Purpose)

By Express News Service

NEW DELHI:  The results of the trials to test feasibility of mixing two Covid-19 vaccines — Covishield and Covaxin — are likely to come out by the end of this month.

Conducted by Christian Medical College (CMC), Vellore, the study will also test the effectiveness of heterologous vaccine doses against new Covid variants.

India’s top virologist Dr Gagandeep Kang, professor at the CMC, said the trial’s objective was to study the safety and immunogenicity (antibodies produced and its effectiveness) of heterologous vaccines against the same two-dose vaccine. 

She said the “first antibody results are likely to come by February-end”. 

In the study, she said a participant will first receive Covaxin followed by Covishield or vice versa. India is using the two vaccines in its vaccination program.  

Initially, it was challenging to recruit people for the study, and other institutes were approached. Now the investigation is being carried out on 400 people.



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