"British media reports that the Russian Sputnik V is allegedly based on research on the Oxford / AstraZeneca vaccine are yet another fake and blatant lie based on anonymous sources," the press release said.

The foundation said the tabloid story is being promoted by opponents of the success of "one of the most effective and safest COVID-19 vaccines in the world."

“We find such attacks highly unethical as they undermine global vaccination efforts,” they added.

The RDIF stressed that such statements "have no scientific meaning", since Sputnik V and AstraZeneca "use different platforms."

Earlier, the press secretary of the Russian President Dmitry Peskov, commenting on The Sun's article on vaccines, recalled that this is "a very well-known deeply unscientific newspaper," the Kremlin treats such publications accordingly.

In April, the director of the Gamaleya Center, Alexander Gintsburg, told the funniest, in his opinion, myth about "Sputnik V".

He noted that the developers of Sputnik V were amused by the information that Russian hackers from the Gamaleya Institute had stolen a plan to create a vaccine drug from AstraZeneca.