MILAN (Reuters) – A group of scientists sent an official letter to the Lancet on Monday expressing doubts about the reliability of data on the results of early trials of a Russian vaccine against COVID-19, one of the authors said.
Enrico Bucci, associate professor of biology at Temple University in Philadelphia, told Reuters the letter was signed by fifteen scientists from five countries.
Reuters was unable to review the contents of the letter. It was sent to a medical journal days after a wider group of scientists – including 15 letter writers – signed an open letter to the Lancet editor, posted on Bucci's personal blog after the journal published the results of an early-stage trial conducted by Moscow Gamaleya Institute.
These steps indicate growing concern among scientists about the safety and efficacy of the Sputnik-V vaccine, which the Russian government has approved even before full human trials are completed.
(Emilio Parodi, translated by Elizaveta Zhuravleva. Editor Anna Kozlova)