A person vaccinated against COVID-19 can theoretically still become a carrier of this infection, since the coronavirus is still able to enter the mucous membranes and be released into the external environment. This was announced by the acting. Dmitry Lioznov, Director of the Smorodintsev Influenza Research Institute of the Ministry of Health of the Russian Federation, during an online conference on influenza and COVID-19 vaccination.
“Theoretically - undoubtedly it can (be a carrier of the virus after vaccination - approx. Agency“Moscow”). It is important to say that the host is not sick. The vaccinated person is protected, the disease does not develop in him. But the pathogen can get on the mucous membranes, persist there for some time and be released into the external environment. This is the so-called transitory, or temporary, carrier. A healthy person can also be a temporary carrier, in whom the disease also may not develop. That is why we say that the vaccinated must comply with certain anti-epidemic measures so as not to infect others,”Lioznov said.
Daria Danilenko, deputy director for research at the Smorodintsev Influenza Research Institute, added that a person can be considered protected no earlier than three weeks after the second dose of the vaccine is administered.
“Let's not forget that vaccinated means that we have received the full dose and a certain amount of time has passed since the vaccination. If you received the first dose in the case of double vaccination, you should not assume that such a person is already vaccinated. After the second injection, at least three weeks should pass at the moment, after which we consider that the time has passed for a person when he can already be considered vaccinated. Until that time, the likelihood that he can be a carrier is, in principle, higher,”Danilenko noted.