Dr. Fauci seriously doubts Russia-approved COVID-19 vaccine is safe and effective Dr. Fauci told Deborah Roberts he "seriously doubt(s)" that the Russian-approved COVID-19 vaccine has been proven to be safe and effective.

Dr. Anthony Fauci told ABC News' Deborah Roberts that he seriously doubts the Russian-made COVID-19 vaccine, dubbed Sputnik V and touted by President Vladimir Putin, has been proven safe and effective.

I hope that the Russians have actually, definitively proven that the vaccine is safe and effective," Fauci said. "I seriously doubt that they've done that.