Mr. Putin was revaccinated with Russia's vaccine / TASS. Russian President Vladimir Putin said on Sunday that he has revaccinated wit...

Vaccine passports have also been described as “immunity certificates”. / Shutterstock. It’s hard not to think about the state of the world a...

The vaccine, known as “Sputnik-V” was developed by the Gamaleya Research Institute, and its mass production has already begun at AFK Sist...