The message on the official website of Sputnik V says that “the highest quality and safety of the Sputnik V vaccine is also ensured by the fact that in the production of Sputnik V, unlike other vaccines, a four-stage purification technology is used, which includes two stages of chromatographic purification. and two stages of tangential filtration ”.

“This technology makes it possible to obtain a highly purified product that undergoes mandatory control for the content of residual DNA,” the statement said.

The center added that they are ready to share "their purification technologies with other vaccine manufacturers to minimize the side effects of their use."

Earlier, the head of Roszdravnadzor Alla Samoilova said that not a single case of thrombosis was recorded in patients vaccinated with the Russian Sputnik V coronavirus vaccine.