"As far as I know, this morning for the first time in the world, a vaccine against the novel coronavirus infection was registered," the president said, reports TASS news agency.
Putin said one of his daughters had tested a Russian COVID-19 vaccine on herself and that she is feeling well.
He said the first Russian COVID-19 vaccine forms stable cell and antibody immunity.
"I know this very well, because one of my daughters got vaccinated. So in this sense, she took part in testing," Putin said.
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He noted that after the first vaccine shot, his daughter had a 38°C fever, and on the next day, a fever slightly higher than 37°C.
"And after the second shot, she had a slight fever again, and then everything was fine, she is feeling well and has a high [antibody] count," the Russian president said.
The Russian leader pointed out that "some people do not have any symptoms at all" after getting a vaccine shot.
On Tuesday, the number of globally confirmed COVID-19 cases surpassed 20 million.
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