Russia covid vaccine: 15 scientists write letter voicing their concern

A group of scientists sent a formal letter to the Lancet on Monday outlining doubts about the accuracy of early data on Russia's COVID-19 vaccine, one of the authors said, adding further fuel to a dispute surrounding the "Sputnik-V" shot. Fifteen scientists from five countries signed the letter presenting their concerns to the international medical journal, Enrico Bucci, biologist adjunct professor at Philadelphia's Temple University, told Reuters. Reuters did not see the contents of the letter. The move nonetheless highlights growing concern among scientists about the safety and efficacy of the Sputnik-V vaccine, which...