Belarus, Bulgaria, the Czech Republic, Hungary, Poland, the Republic of Moldova, Romania, Russia, Slovakia and Ukraine exceeded 5 million cases on Saturday.
There are most cases of Covid-19 in Europe in this region, according to the Reuters report.
Together, these countries reported an average of 82,000 cases in a single day last week, and more than 1,500 associated deaths reported, on average, per day.
Russia, Poland and Ukraine are among the 20 most affected countries in the world.
To date, more than 15 million cases of SARS-CoV-2 infection have been reported in Europe, being the region with the highest number of contaminations. More than 346,000 deaths were recorded here, making it the second most affected region in Latin America.
Authorities in Moscow announced 24,822 cases on Saturday, including 7,168 in the capital, bringing the total in the country since the start of the epidemic to 2.06 million. This is the largest number of cases recorded in a day in the country.
For the last 24 hours, 467 deaths were reported associated with the new coronavirus, the balance now being 35,778.
In the same period, Ukraine registered 14,580 new infections, the Health Minister said on Saturday, thus surpassing the record of 14,575 set the day before.
In total, 612,655 cases and 10,813 deaths were registered here.
As for Romania, 9,685 new cases and 160 associated deaths were announced on Saturday in the last 24 hours.
Worldwide, more than 57.6 million cases of infection and more than 1.37 million associated deaths have been reported worldwide in the past 11 months, according to Johns Hopkins University.