Demystifying the COVID Comb Vax Puzzle – ET HealthWorld

The sudden onset and spread of COVID-19 upended much of life ; the pharma companies across the globe fast tracked and developed COVID-19 vaccines, and its large scale roll-out continues around the world. The emerging new variants, though, bring a challenge in flattening the positivity rate of the COVID-19 cases. The mix-and-match of two vaccines or combination vaccines known as heterologous prime-boost is now being probed by the scientists and experts cite that such strategy could have benefits to help budge Delta plus variant in particular and build better immunity…

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