Dubai: The landscape of single-dose vaccines against COVID-19 just got more interesting. On Sunday, US health authorities approved the Janssen vaccine as a single-shot against COVID, with 78% efficacy. This is seen as a “game changer” in the global counter-coronavirus drive.
Data from the clinical trials and massive vaccination rollouts lead some experts to make a case for single shots from Pfizer and Moderna vaccines, too. The latter two are messenger RNA vaccines currently being rolled out in North America, Europe and the Middle East as a double dose.
With millions of doses per day being administered, there’s a decent amount of information for data scientists to crunch. Some experts argue this delayed or “fractional” dosing, could help the world achieve herd immunity sooner. Other scientists oppose the strategy. Here’s the lowdown on single-dose COVID shots:
Would a single-shot COVID-19 vaccine accelerate fight against coronavirus?
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Covid-19 vaccines: delivering protective immunity
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