A real-world study carried out in the Argentinean capital of Buenos Aires has proven the high efficacy of Russia’s Sputnik V vaccine against Covid-19 in those aged above 60, the distributor of the jab has said.
The results of the large-scale research by the Ministry of Health of the City of Buenos Aires were published in the prestigious, peer-reviewed Journal of the American Medical Association (JAMA) last week.
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