Using a pair of two different vaccines was also advocated as a panacea to supply shortages. Now an ICMR study on 18 people, who were administered Covaxin as their second shot after having received Covishield as the first jab, has yielded encouraging results. For at least two decades, researchers have been trying to find potent immune response combinations against several viral diseases, including HIV. In the past three months, a slew of studies has suggested broadening the frontiers of the combination approach — pairing shots that use fundamentally different technologies. The ICMR study indicates the possibility of Covaxin, which relies on chemically inactivated viruses, becoming part of another potent pair.

Source: Indian Express August 09, 2021 22:18 UTC