We can’t mix and match vaccines

A syringe with the webpage of Russia's Sputnik V vaccine against the coronavirus disease in the background.

Photo credit: AFP

What you need to know:

  • As scenarios develop and evolve, our strategy shouldn’t involve “mixing and matching” Covid-19 vaccines.
  • To contextualise this, we must first understand the rationale of immunisation. 

Vaccine strategy is often a delicate balance of thoughtful preparation and strong execution, with health officials forced to act with imperfect information as they prioritise scarce resources across a broad population.

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