Of the new cases confirmed on Thursday, the most—4,048—were in the central Mazowieckie province, which includes the national capital Warsaw.
The latest deaths in Poland's coronavirus outbreak are 331 people with pre-existing medical conditions and 171 others who died directly because of COVID-19, the health ministry said.
On Wednesday, Poland confirmed 570 deaths and 29,064 new coronavirus infections nationwide, compared with 526 deaths and 19,074 fresh cases a day earlier.
On April 8, the country reported its highest daily toll of 954 deaths related to the coronavirus.
On April 1, the Polish health ministry confirmed 35,251 new single-day cases, the most since the pandemic hit the country early last year.
Poland's first case of coronavirus infection was reported on March 4, 2020.
21,550 in hospitals, 713,321 quarantined
The Polish health ministry announced on Thursday morning that 21,550 COVID-19 patients were in hospitals nationwide, 1,862 of them on ventilators, with a further 713,321 people quarantined for possible coronavirus exposure.
Meanwhile, 3,066,218 people have now recovered from COVID-19 throughout the country, the health ministry also said.
Poland this week imposed a temporary ban on flights to seven African countries amid concerns over the new, highly contagious strain of the coronavirus, omicron.
In other new COVID-19 restrictions, cultural institutions, churches, sports centres, hotels and restaurants across the country are only allowed to be half full from December 1 to December 17, under rules announced by Health Minister Adam Niedzielski at the start of this week.
The limits do not apply to people vaccinated against the coronavirus.
Niedzielski told reporters last week that the fourth wave of the COVID-19 pandemic was expected to reach its height in Poland in early December, with up to 35,000 daily cases.
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Source: IAR, PAP