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April 13, 2021 A trial on the second dose of the anti-Covid vaccine, after the first with AstraZeneca, will start at the Spallanzani Hospital in Rome, using other vaccines including Sputnik.

This was announced by the medical director Francesco Vaia and the regional councilor for health Alessio D'Amato.

There will be 600 volunteers who after the first dose with AstraZeneca will have the second with Pfizer, Moderna and the two different Sputnik adenoviruses.

For the start of the trial, it was explained, Aifa's ok is expected.



150 of the volunteers will be injected as a second dose Pfizer, 150 Moderna, 150 the first Sputnik Ad5 and 150 Sputnik Ad26.

In fact, Sputnik is made up of two different doses.

The experimentation is part of the agreement signed today between Spallanzani and the Gamaleya Institute in Moscow.

There will be two guidelines for the Sputnik study for which the agreement was signed: on the one hand, the effectiveness of the Russian vaccine on variants will be investigated, and on the other, the experimentation on second doses.