National Institute of Virology, Pune (NIV) suggested that recipients who received a mix of Covishield and Covaxin doses gave better immunogenicity than two doses of the same vaccine.
The study was conducted on 18 people by the ICMR-National Institute of Virology Pune and is yet to be peer-reviewed. The Study compared the safety and immunogenicity profile of the individuals against those who received either Covishield or Covaxin (n=40 in each group).
The finding also suggests that immunization with a combination of two different platforms- an adenovirus vector platform-based vaccine (Covishield) followed by an inactivated whole virus vaccine (Covaxin) was not only safe but also elicited better immunogenicity.