Sputnik Light Effective in Re-Vaccination, Combination With Other Vaccines - Developer Thu 06th May 2021 | 05:20 PM MOSCOW (UrduPoint News / Sputnik - 06th May, 2021) Russia's single-dose Sputnik Light COVID-19 vaccine is effective in initial vaccination, re-vaccination and can be used to boost the efficacy if administered in combination with other vaccines, Alexander Gintsburg, director of the Gamaleya Research Center for Epidemiology and Microbiology of the Russian Health Ministry, said. The Russian Health Ministry, the Gamaleya research center and the Russian Direct Investment Fund (RDIF) previously announced that Sputnik Light had received authorization for use in Russia. "Sputnik Light offers strong value in initial vaccination and re-vaccination, as well as boosting efficacy when taken in combination with other vaccines," Gintsburg said as quoted in a RDIF press release.