Dworczyk explained what vaccination model was adopted by Poland. "Just like a large part of the European Union countries," he noted.

"We divide each delivery of vaccines into two parts: half stays in the Material Reserve Agency warehouse in the cold stores and waits for the time being to be used for a second vaccine. The first part goes to vaccination centers," he said.

"We have adopted this solution because we want to have a guarantee of the vaccination for the already first-time vaccinated patient who has not yet acquired immunity, because the manufacturer himself states that this immunity after the first dose is about 52 percent, and only the second dose guarantees 95 percent of immunity," said the head of the Office of the Prime Minister.

Michał Dworczyk noted that currently the monthly number of vaccinations in Poland is about 1 million.