The Russian Direct Investment Fund (RDIF) said on Wednesday that it has offered American pharmaceutical giant Pfizer to conduct joint trials in which the Sputnik Light would be given as a booster shot to people who have received two doses of the Pfizer/BioNTech COVID-19 jab.
Last week, RDIF noted trials in Russia and Argentina showed it is safe to combine the single-shot Sputnik Light vaccine with jabs developed by AstraZeneca, Moderna, as well as China's Sinopharm.