Vaccines against the SARS-CoV-2 coronavirus lose their effectiveness in the human body, in which the level of ethyl alcohol rises to 1%, the director of the Gamaleya Center, which developed the Sputnik V vaccine, Alexander Gintsburg, noted.

For the vaccine to work, the cells of the immune system must divide, he said. However, one and a half glasses of vodka a day has a toxic effect on this process.

"The same thing happens with the constant use of drugs. However, patients who drink cytostatics are still under attack - that is, they are in the active stage of cancer treatment. These drugs suppress the division of their cancer cells, as well as all others," Gintsburg told Russia's Izvestia.