The first to receive the vaccine on Sunday morning was head nurse Alicja Jakubowska, vaccinated by Dr. Artur Zaczyński, head of the Temporary Hospital at Warsaw's National Stadium, part of the CSK MSWiA Interior Ministry hospital.
75 vials of the vaccine - equal to 375 individual doses - were received by the hospital.
By last Wednesday, about 300,000 healthcare workers had already signed up to be inoculated against COVID-19 in the first "zero" stage of the national vaccination programme.
The first coronavirus vaccines had been arriving in Poland this Saturday, with the first 10,000 Polish citizens set to be inoculated a day later.
Priority is given to healthcare staff, followed by residents in nursing homes, people over 60, police, soldiers and teachers.
Poles who are in non-priority groups will be able to sign up for COVID-19 shots from January 15, Health Minister Adam Niedzielski announced last Wednesday.
The European Medicines Agency (EMA) on Monday recommended conditional approval for a coronavirus vaccine produced by US pharmaceutical firm Pfizer and its German partner BioNTech for use across the European Union.
The decision by the EU regulator was later in the day greenlighted by the bloc’s executive, the European Commission.
Polish officials said on Tuesday they expected nearly 600,000 coronavirus vaccines to reach their country by the first week of January.
Poland plans to spend PLN 3 billion (EUR 675m, USD 820m) on over 60 million doses of coronavirus vaccines under a national inoculation programme adopted by the government.