"A vaccinated person is protected, his disease does not develop, but the pathogen can get on the mucous membranes, remain there for some time and be released into the external environment," TASS quotes him.
Lioznov added that a healthy person may be a temporary carrier of the coronavirus, "in whom the disease may not develop."
He noted that therefore, vaccinated people need to observe certain anti-epidemic measures in order not to infect others.
Earlier it was reported that specialists from the Gamaleya Center did not find a single serious side effect of the Sputnik V vaccine.